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http://indianaquariumhobbyist.com/community/ :: View topic - Chillers!
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Chillers!
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Shankar
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PostPosted: Thu Apr 14, 2005 11:56 am Post subject:  Reply with quote

 Hi  Guys,
 
 Any  positive  report  on  cheapest  way  of  DIY  Chiller?  As  per  Nitin's  technique,  my  fridge  is  just  too  far  off  from  my  tank  for  the  'interconnections'.  Till  date  I  got  away  from  the  need  of  having  a  chiller,  inspite  of  having  c0r@1s,  though  my  tank  here  in  Chennai  remains  warm  at  about  30  deg.  And  now  I  am  very  badly  in  need  of  it,  since  the  3-stripe  humbugs  -  2  males  and  2  females  are  in  a  very  good  breeding  mood  but  the  eggs  simply  do  not  hatch  as  i  feel  that  the  temperature  is  surely  the  problem.  Beta,  as  u  said  that  metabolism  may  be  easier  at  higher  temps,  but  30deg  and  above  during  the  day  time,  could  be  just  too  much  for  those  tiny  eggs!  Really  feel  helpless  for  those  willing  parents,  who  spawn  every  two  weeks.  The  rate  of  fertilisation  is  excellent  since  i  see  only  about  upto  10  unfertilized  white  eggs,  among  the  batch  of  more  than  500  eggs.  When  at  Mumbai,  they  used  to  hatch  in  less  than  48  hrs  (  without  chiller  and  water  temp  about  28deg  max.),  but  now  i  just  see  the  male  fanning  the  eggs  for  about  4  days  and  finally  they  get  very  transparent  and  dissolve  soon.  Any  suggesions?
 
 Shankar
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jaideep_ab
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PostPosted: Thu Apr 14, 2005 12:11 pm Post subject:  Reply with quote

 Hi  All,  
 I  maybe  sounding  a  little  dumb  for  asking  this  question  but  just  couldn't  stop  myself  from  doing  it  ....  
 How  do  fish  and  plants  in  nature  handle  the  summer  ?  Is  there  something  obvious  staring  us  in  the  face  that  nature  has  done  that  we  are  missing  ?
 I  know  this  may  sound  a  little  controversial  and  dumb  at  the  same  time  but  have  been  following  this  topic  for  a  while  an  can  see  the  costs  involved  just  climbing  sky  high.  Maybe  we  can  look  at  nature  for  an  answer.
 Cheers  
 Jai
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Madan
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PostPosted: Thu Apr 14, 2005 2:15 pm Post subject:  Reply with quote

                                                   
jaideep_ab  wrote:                
Hi  All,  
 I  maybe  sounding  a  little  dumb  for  asking  this  question  but  just  couldn't  stop  myself  from  doing  it  ....  
 How  do  fish  and  plants  in  nature  handle  the  summer  ?  Is  there  something  obvious  staring  us  in  the  face  that  nature  has  done  that  we  are  missing  ?
 I  know  this  may  sound  a  little  controversial  and  dumb  at  the  same  time  but  have  been  following  this  topic  for  a  while  an  can  see  the  costs  involved  just  climbing  sky  high.  Maybe  we  can  look  at  nature  for  an  answer.
 Cheers  
 Jai                

 
 Nature  does  not  allow  the  huge  fluctuations  in  parameters  you  see  in  aquaria.  Where  ever  there  is  a  massive  fluctuation  the  plants  and  fish  have  adapted  over  eons  to  accomodate  them.  Killifish  for  example.
 
 Remember  larger  your  aquarium,  more  room  for  errors?  Well  that's  true  with  water  parameters.
 
 With  temparature  -  well  that's  again  nature  at  work  -  you  are  fighting  against  nature  here  and  that  is  expensive.
 
 Look  at  nature  for  an  answer?  -  well  yes,  keep  fish  and  plants  that  are  seasonal  as  in  nature,  exactly,  as  they  are  in  the  place  you  live.
 
 Don't  want  to  do  that  and  own  that  really  beautiful  Red  Passion  discus  -  pay  the  price  for  the  fish  and  it's  upkeep.  :wink:  
 
 Fishkeeping  is  limited  only  by  your  greed  to  possess  exotic  species.  :lol:
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Vidul
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PostPosted: Thu Apr 14, 2005 2:25 pm Post subject: Prices Reply with quote

 Considering  the  current  prces  for  chillers  in  India....think  i'll  buy  myself  an  A/C  and  chill  myself.
 Cheers!
 Vidul
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discusrama
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PostPosted: Thu Apr 14, 2005 3:39 pm Post subject: Chillers Reply with quote

 Hi  All,  :lol:  
 
 I  supply  chillers.Just  curious......
   
 What  is  the  temperature  range  that  u  r  looking  at?
 What  is  the  peak  temperature  u  anticipate?
 What  drop  in  temperature  (by  how  many  degrees)  is  required?
 Accuracy  of  controller?
 
 Lastly,  ragetted  BUDGET?
 
 Regards,
 Rama
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Shankar
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PostPosted: Fri Apr 15, 2005 12:55 pm Post subject:  Reply with quote

 Adding  to  Madan's  points  above,  our  aquariums  are  basically  closed  systems  and  if  compared  with  lakes  or  oceans,  the  fishes  or  even  a  few  invertebrates  always  have  the  option  of  swimming  or  moving  away  to  the  places  of  their  comfort  atleast  temporarily,  if  not  permanently.
 
 Shankar
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simba
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PostPosted: Fri Apr 15, 2005 2:17 pm Post subject:  Reply with quote

 Freinds,
 
 Earthen  utensils  or  terracota  utensils  are  used  worldover  (  our  world  ofcourse)  even  now,  for  cooling  water.    I  have,as  a  young  lad  always  kept  fish  outdoors  all  year  around  in  large  burnt  clay  or  terracota  pots,  almost  4  feet  in  diameter  and  a  foot  deep.  It  was  always  a  pleasure  to  have  such  pond  like  water  bodies  around  the  courtyard.  The  livebearers  would  breed  like  crazy.  Even  now  I  have  one  such  setup  and  its  lush  with  plants  and  full  of  fish.  
 
 I  guess,  we  could  definitely  devise  a  more  rustic  and  rural  system  for  cooling  aquarium  water  using  terracota  pots.  It  is  not  possible  in  a  marine  setup  but  its  not  tough  in  a  fresh  water  setup.  A  fan  blowing  air  over  the  potfuls  of  water  will  enhance  the  cooling  effect  on  the  water.  The  water  simply  needs  to  be  circulated  at  a  low  volume  from  the  aquarium,  to  the  clay  pot  and  back.    Yes,  topping  up  will  get  more  frequent  as  a  lot  of  water  will  evaporate  thru  the  pores  in  the  pot,  thereby  consuming  the  heat  off  the  water.
 
 Just  an  idea.    
 
 Regards,
 
 Simba!
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Lawrenze
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PostPosted: Fri Apr 15, 2005 6:12 pm Post subject:  Reply with quote

 Hi
 This  might  be  of  some  interest...  Shocked    http://www.petfrd.com/forum/articles.php?action=viewarticle&artid=92
 Rgds
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jaideep_ab
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PostPosted: Fri Apr 15, 2005 6:41 pm Post subject:  Reply with quote

 Thanks  Madan,  that  makes  sense  ..  i  guess  the  more  exotic  the  species  the  more  the  parameters  need  to  be  controlled.
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Dolphy
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PostPosted: Fri Apr 15, 2005 7:06 pm Post subject:  Reply with quote

                                                   
crazyfishy  wrote:                
Hi
 This  might  be  of  some  interest...  Shocked    http://www.petfrd.com/forum/articles.php?action=viewarticle&artid=92
 Rgds                

 
 And  that  would  give  our  fishies  a  mighty  thermal  SHOCK!!!!!  The  temperature  change  is  rather  abrupt.  It  should  be  gradual  over  a  prolonged  period  of  time.  
 
 Jenny
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discusrama
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PostPosted: Fri Apr 15, 2005 7:19 pm Post subject:  Reply with quote

                                                   
simba  wrote:                
Freinds,
 
 I  guess,  we  could  definitely  devise  a  more  rustic  and  rural  system  for  cooling  aquarium  water  using  terracota  pots.  It  is  not  possible  in  a  marine  setup  but  its  not  tough  in  a  fresh  water  setup.  A  fan  blowing  air  over  the  potfuls  of  water  will  enhance  the  cooling  effect  on  the  water.  The  water  simply  needs  to  be  circulated  at  a  low  volume  from  the  aquarium,  to  the  clay  pot  and  back.    Yes,  topping  up  will  get  more  frequent  as  a  lot  of  water  will  evaporate  thru  the  pores  in  the  pot,  thereby  consuming  the  heat  off  the  water.
 
                 

 
 Simba,  supposing  we  use  an  earthen  vessel,  some  piping,  a  powerhead;  then  i  think  we  can  achieve  a  drop  of  2  -  3  degrees  over  a  period  of  time.  However,  we  will  need  sufficeient  place  to  position  this  vessel.  Maybe,  we  could  also  look  at  initially  adding  ice  to  the  vessel.  A  slowly  circulating  pump/  powerhead  can  keep  this  water  circulating  for  say  two  -  three  hours.
 
 Regards,
 Rama
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nytyn
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PostPosted: Fri Apr 15, 2005 11:48 pm Post subject:  Reply with quote

 Discus  rama....  I  am  looking  at  the  thermometer  reading  31,  and  am  sure  it  will  go  upto  33  this  summer.  I  want  to  see  27  there.  Mail  me  at  nytyn  [at]  rediffmail  [dot]  com  if  you  can  help  me.  Forgot  to  mention,  my  tnk  is  about  190  gal...  approx  700  plus  liters.
 
 Jaideep..  I  have  2  metal  halides  on  my  marine  tank  12  hrs  a  day.  I  have  3  cannisters  pumping  water  like  crazy  24X7.  And  1  huge  powerhead  for  circulation.  And  a  powerhead  to  drive  my  skimmer.  And  a  powerhead  in  my  denitrator.  All  running  24X7.  That  explains  the  heat,  LOL.  As  Madan  said,  volumes  are  bigger  in  nature,  and  changes  are  very  gradual.
 
 For  those  of  you  wondering  why  all  this  cribbing....  Marine  livestock  do  not  tolerate  temperatures  above  30.  I  know  a  lot  of  our  Chennai  gang  who  have  lost  whole  tanks  of  fish  during  summer.
 
 And  the  cost  of  a  good  chiller  would  be  around  60  to  70  k.  Thats  what  I  found  when  I  was  looking  for  one  for  my  tank.
 
 And  yes,  airconditioning  the  room  would  be  a  damn  good  thing.  I  would  have  done  that  if  my  tank  was  in  my  bedroom!
 
 PS  Discusrama:  I  have  great  circulation  in  my  tank,  so  temperature  uniformity  should  be  easy  to  achieve.  I  am  looking  at  an  accuracy  of  at  least  1  degree.
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jaideep_ab
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PostPosted: Sat Apr 16, 2005 8:50 am Post subject:  Reply with quote

 Hi  Nitin,  
 At  this  point  a  split  aircon  for  the  room  itself  seems  to  be  the  most  economical  solution  to  this.  I  live  in  an  airconditioned  atmosphere(as  much  as  i  hate  it)  in  dubai  and  while  outside  temperatures  are  reaching  40  degrees  already  have  two  300watt  heaters  working  fulltime  on  my  tank  heating  it  up  !!  have  noticed  that  a  simple  window  aircon  does  wonders  for  the  room  temperature  and  keeping  the  windows  and  doors  shut  helps  prevent  a  lot  of  dust  from  coming  in  as  well(bonus)  
 Think  about  it  ....while  your  electricity  bill  will  go  up  the  option  is  much  more  reasonable.
 Cheers
 Jai
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ravi
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PostPosted: Sat Apr 16, 2005 8:56 am Post subject:  Reply with quote

 Hi  Nytyn,
 
                                                 
nytyn  wrote:                
And  the  cost  of  a  good  chiller  would  be  around  60  to  70  k.                

 
 A  suitable  sized  chiller,  imported  unit,  should  cost  about  12.5  k.  I  got  a  quote  from  a  reputed  Indian  manufacturer  for  1/6th  hp  chiller,  20  k  +  taxes.
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ApurvaP
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Joined: Jan 24, 2005
Posts: 367


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PostPosted: Sat Apr 16, 2005 9:12 am Post subject:  Reply with quote

 How  many  of  u  know  the  cause  of  the  high  temperature  in  the  tank?  U  blame  it  all  on  the  atmosphereoutside  ,  lighting,  etc.  These  two  are  the  prameters  but  do  u  know  that  the  powerheads  also  heat  up  the  water.  YES  they  do!    So  in  a  marine  tank  this  is  one  parameter  u  have  to  control.  Well  the  question  is  how?  Simple  get  ceramic  powerheads!  These  are  bad  conductors  of  heat  so  they    are  helpful.  And  yes  they  are    available!
 
 
 Regards
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