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http://indianaquariumhobbyist.com/community/ :: View topic - lighting for live rock
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lighting for live rock
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AQUALIFE
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PostPosted: Tue Apr 18, 2006 1:17 pm Post subject: lighting for live rock Reply with quote

 My  tank  dimensions  are  36x14x20  .
 I  am  planning  to  keep  to  keep  20  kgs  of  live  rock  with  some  polyps  ,  soft  corals  ,  feather  dusters  and  anemones  .  
 Suggest  me  lights  for  such  a  set  up  other  than  MH.
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psimhan
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PostPosted: Tue Apr 18, 2006 2:04 pm Post subject:  Reply with quote

 CFLs    at  least  3  -  5  watts  per  gallon  of  10000k  or  6500k  with  an  actinic  blue.
 You  are  cutting  it  pretty  fine  because  anything  above  24'  high  tank  needs  MH,  so  keep  the  corals  higher  up  in  the  tank.
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aquascapes
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PostPosted: Tue Apr 18, 2006 2:31 pm Post subject:  Reply with quote

                                                   
Quote:                
CFLs  at  least  3  -  5  watts  per  gallon  of  10000k  or  6500k  with  an  actinic  blue                

   Sad  6500k  is  not  worth  considering.
 @aqualife,
 I  use  two  36w  (10,000k)  HI-PL  tubes  (azoo)  +  1  actinic  blue  (40w)  4'  tubelight  so  you  could  probably  add  a  36w  (HI-PL)  X  1no.  +  azoo  coral  blue  tubelight  (2')  x  1  +  actinic  blue  tube  (2')  x  1  =  BINGO!
 Aqualife,  please  let  me  know  what  soft  corals  and  mushrooms  you  are  putting  in  the  tank  -  at-least  (once)  consider  discussing  about  it  prior  to  your  purchase    Chuckle  
 (I'm  not  dis-couraging  you  just  trying  to  help    Thumb Up  )
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psimhan
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PostPosted: Tue Apr 18, 2006 3:44 pm Post subject:  Reply with quote

                                                   
aquascapes  wrote:                

   Sad  6500k  is  not  worth  considering.
                 

 
 Can  you  elaborate  on  this  please?  
 From  what  I  ve  read  all  corals/inverts  do  best  under  6500K(noon  sunlight)  -  10000K(blue  sky).  Anything  on  either  side  of  the  spectrum  is  not  much  use.  
 I  read  somewhere  in  WWM  that  6500K  gives  better  growth  while  10000k  is  better  for  colours.
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murthy
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PostPosted: Tue Apr 18, 2006 4:10 pm Post subject:  Reply with quote

 I'll  admit  I  am  very(VERY)  confused  about  light/lighting/their  amounts  measurements.
 
 But  this  is  what  I  conclude  from  various  sources  (and  a  lot  from  this  forum)
 Deeper  you  get  underwater,only  blue  light  can  penerate.Hence  coral/organisms  that  are  found  at  these  depths  are  bound  to  respond  better  to  blue(10000k?)so  that  has  very  little  to  do  with  blue  sky.Question  is:
 1.At  what  depth  does  light  become  10000k?
 2.Dont  coral  grow  at  surface,fed  by  6500k  light?considering  that  tides  cause  water  levels  to  rise  and  fall  considerably,dont  10000k  corals  also  routinely  get  exposed  to  6500k?
   I  have  a  feeling  that  most  coral/marine  algea  can  adapt  to  any  Kelvin  rating  between  6500k  to  10000k.It  is  somewhat  unconvincing  to  be  told  that  6500k  does  so  well  for  freshwater  plants,yet  wont  do  well  for  coral  that  is  exposed  to  the  same  sun!
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aquascapes
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PostPosted: Tue Apr 18, 2006 11:12 pm Post subject:  Reply with quote

 Well,  Murthy  I  doubt  that  the  deeper  colonies  of  corals  are  ever  exposed  to  6500k  for  extended  periods.  Anyways,  It  is  the  same  logic  that  you  mention  that  the  65k  works  well  for  planted  aquariums  -  you  can  check  any  post  where  a  refugium  is  discussed  and  you  will  see  that  the  light  proposed  is  a  6500k!
 We  don't  want  to  grow  algae  in  the  aquarium  so  a  6500k  is  something  that  should  be  avoided  -  The  fundamental  reason  why  I  keep  stressing  this  point  is  because  I  know  of  someone  who  inspite  of  me  telling  him  not  to.......  installed  two  MH  in  a  six  footer  and  in  the  event  to  save  money  bought  the  regular  6500k  tubes  thinking  that  6500+6500=13000k  (a  very  common  mis-conception).  I  have  seen  his  tank  go  down  the  drain  just  by  the  change  in  lights  ........all  the  decor  and  everything  inside  his  tank  covered  with  a  thick  layer  of  blue-green  algae,  hair  algae,  and  all  other  possible  algae  which  are  considered  un-desirable!  The  tank  however  was  a  fish  only  with  live  rocks  and  he  had  to  treat  all  the  LR  which  killed  all  the  coralline  and  the  'live-matter'  on  the  rocks  -  a  real  disaster!
 Well  if  the  soft  corals  +  mushrooms  +  zooanthids  etc.  are  exposed  to  6500k  -  they  will  not  die  but,  the  slightest  fluctuation  in  your  water  parameter  will  result  in  a  dreaded  algae  bloom  -  coralline  algae  which  is  one  of  the  more  desirable  algae  will  actually  do  well  in  the  higher  color  temp.  and  once  the  coralline  becomes  sexually  active  -  it  will  encrust  almost  everything  including  your  power-heads  and  even  glass!  Which  leaves  very  little  for  the  un-desirable  algae  to  feed  on  and  survive!
 (please  note  one  thing  here  though!.........The  water  in  such  an  algae  infested  tank  remains  more  stable  due  to  the  efficient  nutrient  exchange  and  the  fish  will  actually  benefit  from  the  more  stable  water  chemistry  -  But,  it  is  the  look  that  matters!)
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aquascapes
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PostPosted: Tue Apr 18, 2006 11:22 pm Post subject:  Reply with quote

                                                   
psimhan  wrote:                

 Can  you  elaborate  on  this  please?  
 From  what  I  ve  read  all  corals/inverts  do  best  under  6500K(noon  sunlight)  -  10000K(blue  sky).  Anything  on  either  side  of  the  spectrum  is  not  much  use.  
 I  read  somewhere  in  WWM  that  6500K  gives  better  growth  while  10000k  is  better  for  colours.                

 Yes  pradeep,  the  inverts  that  depend  upon  their  own  zooa.  for  survival  will  benefit  more  from  the  excess  algae  formation.  (not  the  carnivores)  but,  why  take  chances  with  an  algae  infestation  which  can  rob  the  inverts  of  the  necessary  trace  elements?
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AQUALIFE
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PostPosted: Thu Apr 20, 2006 11:21 am Post subject:  Reply with quote

 Thanks  for  helping  me  about  lighting  .  As  I  have  already  posted  I  have  red  sand  polyps    .  They  are  doing  well  .  Infact  they  have  increased  in  number  .  I  have  been  using  ocean  free  invert  food  .  Is  it  enough  or  shall  I  add  something  else  .  Is  there  any  live  food  available  for  polyps  .  what  conditions  are  required  to  speed  up  the  red  coralline  algae  growth  .What  corals  can  I  keep  in  my  tank  .    Can  anyone  list  the  details  of  inverts  i  can  keep  in  my  tank  .
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aquascapes
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PostPosted: Thu Apr 20, 2006 4:35 pm Post subject:  Reply with quote

 Depends  upon  what  set-up  you  are  planning  for  -  I'd  suggest  you  to  first  spend  upon  the  necessary  equiptment  like  lights  and  filtration  etc.  and  then  let  us  know  what  you  are  interested  in  keeping  in  your  tank  -  likewise  we  can  discuss  about  the  inverts  and  if  you  feel  it  to  be  worth  it  -  go  ahead  and  buy  it!
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vadivam
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PostPosted: Thu Apr 20, 2006 6:26 pm Post subject:  Reply with quote

 hai  guys  out  there,  iam  magesh  
   hey,  aqualife  i  read  your  mail  u  have  asked  for  some  live  food  for  the  corals  they  are  availabe  man  they  are  called  as  chists  they  r  actually  eggs  which  should  be  areated  in  the  water  for  1  night  &  the  other  day  they  would  be  hatched  so  that  u  could  collect  them  &  release  in  the  tank.
     
   iam  currently  having  a  3ft  tank  with  some  green  zooanthid  colonies  &  pink  ones    i  even  have  one  acropora  &  a  goniapora  which  r  doing  great  .
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PostPosted: Thu Apr 20, 2006 6:34 pm Post subject:  Reply with quote

 hai,  aquasapes  i  read  your  post  about  the  lighting  thing  but  i  have  a  3ft  tank  with  one  150watt  metalhalide  which  is  only  5500kelvin  &  one  coral  blue  light  30wt  the  tank  is  now  1  1/2  yrs  old  and  there  is  no  algae  formed  at  all  except  coralline  algae.  the  thing  which  u  say  is  right  but  if  u  do  weekly  waterchanges  then  u  can  maintain  your  tank  without  any  algae  problems  .
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aquascapes
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PostPosted: Thu Apr 20, 2006 9:23 pm Post subject:  Reply with quote

                                                   
vadivam  wrote:                
hai  guys  out  there,  iam  magesh  
   hey,  aqualife  i  read  your  mail  u  have  asked  for  some  live  food  for  the  corals  they  are  availabe  man  they  are  called  as  chists  they  r  actually  eggs  which  should  be  areated  in  the  water  for  1  night  &  the  other  day  they  would  be  hatched  so  that  u  could  collect  them  &  release  in  the  tank.
   iam  currently  having  a  3ft  tank  with  some  green  zooanthid  colonies  &  pink  ones    i  even  have  one  acropora  &  a  goniapora  which  r  doing  great  .                

 Dear  sir,  please  refrain  from  such  posts  as  the  corals  you  mention  are  most  importantly  banned  by  the  schedule  #1  of  the  wild  life  Act  of  1972.
 well  comming  back  to  your  feed  suggestion  -  cysts  is  the  right  word!  And  you  are  probably  suggesting  'Brine  Shrimp'
 
 
                                                 
Quote:                
hai,  aquasapes  i  read  your  post  about  the  lighting  thing  but  i  have  a  3ft  tank  with  one  150watt  metalhalide  which  is  only  5500kelvin  &  one  coral  blue  light  30wt  the  tank  is  now  1  1/2  yrs  old  and  there  is  no  algae  formed  at  all  except  coralline  algae.  the  thing  which  u  say  is  right  but  if  u  do  weekly  waterchanges  then  u  can  maintain  your  tank  without  any  algae  problems  .                

 My  dear  sir,
 if  only  one  can  afford  weekly  water  changes  why  would  people  invest  in  filters  and  sumps  and  since  you  say  you  have  a  good  coralline  encrusting  your  tank  interiors  there  is  probably  very  little  nutrition  left  for  the  undesirable  algae+WC.
 What  suppliments  do  you  add  for  your  corals?  How  often?  How  much?
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psimhan
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PostPosted: Fri Apr 21, 2006 8:50 am Post subject:  Reply with quote

                                                   
vadivam  wrote:                
   
   iam  currently  having  a  3ft  tank  with  some  green  zooanthid  colonies  &  pink  ones    i  even  have  one  acropora  &  a  goniapora  which  r  doing  great  .                

 o_O  Police
 Apart  from  the  legal  issue,  I  am  surprised  that  you  ve  been  keeeping  them  under  5500k  light  which  is  too  far  on  the  IR  side  of  the  spectrum  for  them.
 
 
 
                                                 
vadivam  wrote:                
hai  guys  out  there,  iam  magesh  
   hai,  aquasapes  i  read  your  post  about  the  lighting  thing  but  i  have  a  3ft  tank  with  one  150watt  metalhalide  which  is  only  5500kelvin  &  one  coral  blue  light  30wt  the  tank  is  now  1  1/2  yrs  old  and  there  is  no  algae  formed  at  all  except  coralline  algae.  the  thing  which  u  say  is  right  but  if  u  do  weekly  waterchanges  then  u  can  maintain  your  tank  without  any  algae  problems  .                

 
 Weekly  waterchanges  seems  a  good  way  to  go.  How  much  do  you  change  per  week?
 
 Also  while  we  are  on  the  subject  of  water,  who  here  uses  RO/DI  water  for  their  aquariums?  I  ve  heard  that  RO/DI  is  the  way  to  go.  Here  down  south  ,  the  water  is  very  hard  which  could  be  a  problem,  and  supposedly  Bangalore  water  contains  high  nitrates.
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vadivam
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Joined: Jul 10, 2004
Posts: 15


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PostPosted: Fri Apr 21, 2006 7:27 pm Post subject:  Reply with quote

 i  know  that  they  are  banned  thats  why  i  didnt  post  all  these  days  .
             iam  dozing  them  with  azoo  calcium  ,  vitamin  powder  which  i  wld  mix  in  the  water  every  2  weeks  once.  i  dont  have  any  sump  or  any  external  filter  at  all,  iam  using  only  2  hang  on  back  filters  1  weipro  external  skimmer  &  4  powerheads  for  water  flow  thats  all  i  have  for  maintaining  these  guys  &  my  pink  tip  tentacle  anemone  is  now  2  years  old  .
         hai  psimhan,  iam  using  only  our  well  water  for  preparing  the  saltwater    iam  not  using  any  ro  di  water  and  all.
   thank  you
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aquascapes
Committed Member of IAH
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Joined: Dec 19, 2005
Posts: 2753
Location: Surat, Gujarat

Status: Offline
PostPosted: Fri Apr 21, 2006 8:57 pm Post subject:  Reply with quote

                                                   
Quote:                

 iam  dozing  them  with  azoo  calcium  ,  vitamin  powder  which  i  wld  mix  in  the  water  every  2  weeks  once.  i  dont  have  any  sump  or  any  external  filter  at  all,  iam  using  only  2  hang  on  back  filters  1  weipro  external  skimmer  &  4  powerheads  for  water  flow  thats  all  i  have  for  maintaining  these  guys  &  my  pink  tip  tentacle  anemone  is  now  2  years  old  .  
 hai  psimhan,  iam  using  only  our  well  water  for  preparing  the  saltwater  iam  not  using  any  ro  di  water  and  all.  
 thank  you                

 you  seem  to  amuse  me!
 Please  understand  one  thing  calcium  if  used  in  excess  without  mg.  is  toxic  to  corals  -  if  you  say  azoo  liquid  suppliment  it  comes  along  with  magnesium.  But,  if  you  use  the  extra  calcium  powder  than  you  need  magnesium  to  be  dosed  also.
 The  skimmer  you  mention  is  good  for  a  tank  of  120-150gal.  Apart  from  the  3'  size  you  did  not  mention  other  dimensions  -  please  specify  the  tank  capacity.
 I  would  also  like  to  know  the  role  vitamins  play  for  coral  growth  -  I've  never  dosed  any  vitamins  or  vitamin  suppliments  to  my  reef  nor  have  heard  of  any  reefer  doing  it.
 I  myself  don't  use  RO/DI  water  but,  what  psimhan  is  trying  to  say  is  if  your  source  water  is  very  hard  or  has  a  high  nitrate  content  than  you  should  consider  using  RO/DI  which  sounds  logical!
 
                                                 
Quote:                
i  know  that  they  are  banned  thats  why  i  didnt  post  all  these  days  .                
 
 What  made  you  change  your  mind?  -  Gonipora  is  a  difficult  coral  even  for  advance  aquarists  and  with  the  kind  of  set-up  you  have  it  seems  it  is  only  surviving  on  one  single  factor  =  Weekly  WCs!
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