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http://indianaquariumhobbyist.com/community/ :: View topic - Solatube for Reef Lighting - Solutions wanted.
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Solatube for Reef Lighting - Solutions wanted.

 
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kochu
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PostPosted: Wed May 10, 2006 9:07 pm Post subject: Solatube for Reef Lighting - Solutions wanted. Reply with quote

 Is  sola  tube  very  expensive  in  India??
 look  at  the  monthly  electricity  consumption  bill!!  for  such  a  tank  one  would  require  at  least  4  X  400  watts  MHs.  The  cost  would  be  about  20K  (equipment)  then  the  monthly  bill  and  what  happens  if  there  is  continuous  power  cut??    Crying or Very sad  
 Solatube  as  far  as  I  know  costs  less  than  20K.  Dunno  the  price  in  India  Sad
 Since  I  will  source  the  expensive  things  from  abroad,  I  think  we  can  do  it  cheap.
 And  I  plan  to  have  lots  of  seeded  oyesters  in  teh  tank  Razz  so  that  when  I  need  money  dive  in  and  pick  a  huge  pearl  Wink  Drinking    Rock On    Thumbs Up    Cheer
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Thillu
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PostPosted: Wed May 10, 2006 10:03 pm Post subject:  Reply with quote

 Hi  Kochu,
 
 If  you  seriously  need  an  answer  change  the  subject  to  something  related  to  your  question.    I  doubt  it  gets  noticed  by  Marine  experts  now.
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ravi
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PostPosted: Wed May 10, 2006 10:25 pm Post subject:  Reply with quote

 And,  who  will  associate  "hi"  with  solatubes  ?
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Madan
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PostPosted: Thu May 11, 2006 8:42 am Post subject:  Reply with quote

 I  saw  the  animation  of  the  solatube  light  transfer.
 
 In  cities  with  lots  of  high  rise  buildings  around  the  solatube  will  at  best  function  for  4-5  hrs  per  day.  It  relies  on  sunlight  striking  the  collector.  This  will  not  happen  until  around  10:00  AM  and  will  end  around  4:00  PM.
 
 Also  you  need  to  place  the  thing  on  the  terrace,  the  cost  escalates  with  the  length  of  the  reflecting  tube  increasing.
 
 Location  of  the  aquarium  takes  prime  importance,  multistoried  buildings  increase  cost,  buildings/trees  reduce  the  advantage.  Moreover  for  unobstructed  sunlight  there  should  be  no  structure  south  of  the  solatube  collector,  or  else  it  will  be  in  shadow  most  of  the  time.
 
 If  you  are  able  to  address  the  above  -  solatube  may  well  work.
 
 Another  point  I  have  not  been  able  to  clarify  -  say  for  a  10  feet  tank,  will  one  solatube  collector  be  enough?  The  end  diffuser  may  have  to  be  redesigned  for  one  single  collector.  Is  this  possible?
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kochu
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PostPosted: Thu May 11, 2006 12:55 pm Post subject: Solatube Reply with quote

 Yes  if  there  are  tall  buildings  casting  shadow  all  round  it  is  not  practical.  Similarly  in  a  high  rise  also  it  seems  it  is  not  economical.  A  Double  story  building  is  OK.
 For  a  10  ft  aquarium  I  think  we  will  need  at  least  2.  
 I  also  read  that  a  21"  solatube  is  like  a  400  watt  MH.  I  am  also  told  it  will  reflect  the  moonlight  so  that  an  element  that  many  reefs  have  (The  moon  phase)  also  is  taken  care  of  and  it  leads  to  better  growth  of  corals  and  even  their  spawning.  I  have  also  read  that  no  heat  is  transmitted  by  the  solatube  resulting  in  lesser  need  for  cooling  of  the  waters.
 Let  us  examine  the  issue  better??
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rahulk
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PostPosted: Thu May 11, 2006 1:07 pm Post subject:  Reply with quote

 Yes  this  might  be  a  very  natural  source  of  light  but  the  light  needs  to  be  filtered  since  you  do  not  find  any  reef  at  2  feet  depth,  they  are  usually  found  around  10  feet  .
 
 Since  many  creatures  are  tuned  to  the  phases  of  the  moon  ,  this  could  be  great  in  terms  of  their  re-production  and  health.
 
 Please  correct  me  if  i  am  wrong  ,  I  will  surely  learn  from  it  .  Very Happy  
 
 Thanks  And  regards
 Rahul
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Madan
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PostPosted: Thu May 11, 2006 1:46 pm Post subject: Re: Solatube Reply with quote

                                                   
kochu  wrote:                
For  a  10  ft  aquarium  I  think  we  will  need  at  least  2.
                 

 
 I  read  on  the  reefcentral  link  you  posted  that  one  solatube  lights  up  2  x  2  =  4  sq.ft  area.  So  you'll  need  more  than  2.
 
 
                                                 
Quote:                

   I  also  read  that  a  21"  solatube  is  like  a  400  watt  MH.  I  am  also  told  it  will  reflect  the  moonlight  so  that  an  element  that  many  reefs  have  (The  moon  phase)  also  is  taken  care  of  and  it  leads  to  better  growth  of  corals  and  even  their  spawning.  I  have  also  read  that  no  heat  is  transmitted  by  the  solatube  resulting  in  lesser  need  for  cooling  of  the  waters.
 Let  us  examine  the  issue  better??                

 
 Yes  it's  a  400  watt  MH,  Check  out  this  catalog  from  Solatube
 
 The  lumens  is  up  there  at  20000+  for  a  21  inch  model.  The  cost  too  is  somewhere  around  USD  680  or  higher  for  each.
 
 It  surely  has  it's  advantages  too  if  you  have  deep  pockets!
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