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http://indianaquariumhobbyist.com/community/ :: View topic - 90's temp for Discus
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90's temp for Discus

 
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madhu_ulysses
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PostPosted: Mon Feb 14, 2005 2:49 pm Post subject: 90's temp for Discus Reply with quote

 Generally  for  newly  acquired  discus  we  keep  the  temp  at  around  90-92oC.    Its  a  well  known  fact  that  discus  comes  out  of  stress  &  increases  apetite  faster  in  these  temperatures.    But  have  anyone  had  discus  in  the  90s  on  the  long  run  and  what  would  be  the  effects  if  discus  were  kept  in  such  a  high  temp  for  a  long  time?
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beta
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PostPosted: Mon Feb 14, 2005 3:02 pm Post subject:  Reply with quote

 I  hope  you  are  referring  to  90  degree  Fahrenheit  which  is  around  32  degree  Celsius  Exclamation  
 
 I  feel  that  its  a  misconception  that  you  have  to  raise  the  temperature  for  newly  arrived  discus.  It  all  depends  on  what  the  temperature  of  water  is  in  the  packet  in  which  the  discus  arrives.  Try  and  match  this  temperature  first  and  slowly  bring  it  up,  if  you  live  in  a  place  with  a  cooler  climate.
 Higher  the  water  temp,  more  is  the  metabolic  rate  and  lesser  the  dissolved  oxygen.  
 I  haven't  seen  any  ill  effects  in  discus  when  kept  in  the  high  ranges  of  temperature.  Water  temp  goes  upto  34-36C  during  the  peak  of  summer  in  Chennai  and  the  discus  didn't  seem  to  be  in  any  discomfort,  while  i  have  lost  a  tankful  of  marine  fishes  in  this  type  of  temperature.
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madhu_ulysses
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PostPosted: Mon Feb 14, 2005 4:04 pm Post subject:  Reply with quote

 I  believe  raising  temp  could  help  newly  acquired  fish  for  two  reasons.    Firstly,  as  beta  said  higher  metabolism  which  i  believe  leads  to  increased  apetite  and  secondly  it  could  help  in  getting  rid  of  parasites.    My  guess  is  with  more  apetite  growth  is  faster  but  what  happens  to  other  factors  such  as  slime  coat  generation,  over  all  health,  fertility  &  life  span  if  it  influences?
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venki25
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PostPosted: Mon Feb 14, 2005 5:43 pm Post subject:  Reply with quote

 Without  quoting  Discus  as  far  as  i  have  learnt    -    Freshwater  fishes  ar  best  suited  at  26-28  C  and  temp  is  raised  to  30  -  32  only  for  specific  period  to  increase  the  metabolic  activities.  This  was  done  for  show  quality  fishes  when  they're  pumped  with  high  quality  /  nutritious  food.
 
 Nowadays  this  reasoning  of  raising  temp  is  advised  by  many  and  all  as  this  is  comforting  for  fishes  and  wards  away  parasites.  But  i  don't  think  raised  temperature  for  long  intervals  is  advised  as  this  leads  to  reduced  immunity.  
 
 As  Beta  said  34-36C  in  peak  of  summer  is  news  to  me.  But  this  too  is  not  on  long  continuous  periods.  It  is  better  to  stick  to  shorter  durations  than  everlast
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Mumbai-discus
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PostPosted: Tue Feb 15, 2005 1:31 am Post subject:  Reply with quote

 32  is  cool..  in  fact  if  the  fish  are  kept  constantly  at  that  kinda  temperature..  (with  absolutely  no  variations...  including  adding  same  temp  water  during  changes..)  they  are  bound  to  grow  faster  since  the  metabolism  will  increase  ...
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discusboy
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PostPosted: Tue Feb 15, 2005 4:35 pm Post subject:  Reply with quote

 32  c  is  the  temp  i  keep  for  the  juveniles  and  the  metaboilc  activity  definately  increases..thus  enhancing  growth  and  keep  a  check  on  parasites..
 The  adults  are  always  at  room  temp.
 
 Madhu  wrote..
 
                                                 
Quote:                
but  what  happens  to  other  factors  such  as  slime  coat  generation,  over  all  health,  fertility  &  life  span  if  it  influences?                

 
 Havent  seen  any  diff  in  the  slime  coat  generation..
 
 Over  all  health  increases...
 
 As  for  fertility  it  does  not  affect  as  i  have  kept  juvenines  till  5  inches  in  a  high  temp  and  the  same  fish  are  breeding  at  a  normal  rate  and  giving  atleast  70  babies  and  even  more  upto  200  babies  at  times..
 The  optimum  temp  for  breeding  is  26  c  to  max  29  c  and  i  my  self  have  never  seen  them  breed  above  that  temp.
 
 As  for  the  life  span  I  wouldnt  know  as  all  my  fishes  are  still  alive..
 Touch  wood...  Smile    Smile
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Mumbai-discus
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PostPosted: Wed Feb 16, 2005 4:17 am Post subject:  Reply with quote

 Well  missed  out  on  the  breeding  in  the  earlier  post...  i  have  definitely  seen  egg  laying  even  at  32...  but  since  i  dont  use  heaters  for  my  breeding  tanks..  the  eggs  in  the  community  tank  were  bound  to  be  eaten  up  and  ended  up  in  the  stomachs  ...
 
 if  these  guys  wanna  breed..  at  26  or  32  they  just  DO  IT!!
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retro_gk
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PostPosted: Wed Feb 16, 2005 6:17 am Post subject:  Reply with quote

                                                   
discusboy  wrote:                
32  c  is  the  temp  i  keep  for  the  juveniles  and  the  metaboilc  activity  definately  increases..thus  enhancing  growth                  

 
 At  the  expense  of  lifespan...Increased  metabolism  in  juvenile  fish  has  been  associated  with  reduced  life  expectancy.
 
 I  recommend  a  temperature  of  around  28C  unless  you  are  dealing  with  diseased  fish.
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discusboy
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PostPosted: Wed Feb 16, 2005 12:31 pm Post subject:  Reply with quote

                                                   
Quote:                
At  the  expense  of  lifespan...Increased  metabolism  in  juvenile  fish  has  been  associated  with  reduced  life  expectancy.                  

 
 Yes  may  be  true..
 But  i  said  i  keep  for  juveniles  and  that  is  not  for  ever..  only  till  they  grow  ..
 All  the  adults  are  kept  at  room  temp..  and  i  have  quoted  the  same  in  my  earlier  post..
 
 and  have  not  experienced  life  expectancy  so  cannot  comment..
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retro_gk
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PostPosted: Wed Feb 16, 2005 10:48 pm Post subject:  Reply with quote

 [quote="discusboy..  only  till  they  grow  ..
 [/quote]
 
 AFAIK,  it  is  this  "forced"  growth  spurt  that  affects  lifespan.  All  of  this  is  moot  anyway  as  aquarium  fish  in  general  live  much  longer  than  their  wild  cousins.  Very Happy
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madhu_ulysses
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PostPosted: Wed Feb 16, 2005 11:23 pm Post subject:  Reply with quote

                                                   
retro_gk  wrote:                

 anyway  as  aquarium  fish  in  general  live  much  longer  than  their  wild  cousins.  Very Happy                

 
 Very  true  Rahul.    Provided  with  proper  care  aquarium  fishes  DOES  live  longer  than  the  wild  ones.    I  really  doubt  if  any  wild  specimen  lives  to  its  full  life  span.    Competition,  predation  and  disease  would  possibly  kill  it  well  before  its  normal  death.
 Also  there  are  no  potassium  permanganate,  metrogyl,  tetra  bits  or  egg  craters  in  the  wild.  :wink:
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retro_gk
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PostPosted: Thu Feb 17, 2005 1:44 am Post subject:  Reply with quote

 This  is  from  the  planetcatfish  forums,  water  parameters  in  rivers  the  majority  of  wild  discus  are  exported  from:
 
 pH=4.4
 GH=0.003
 Temp=27  C
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nag
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PostPosted: Thu Feb 17, 2005 10:06 am Post subject:  Reply with quote

                                                   
Quote:                
pH=4.4                

 WOW  Exclamation    Exclamation
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madhu_ulysses
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PostPosted: Thu Feb 17, 2005 10:10 am Post subject:  Reply with quote

 So  they're  living  in  distilled  water  huh!  Rolling Eyes
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retro_gk
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PostPosted: Fri Feb 18, 2005 12:47 am Post subject:  Reply with quote

 Distilled  water  still  has  a  pH  close  to  7...WRT  hardness,yes,  DW  comes  closest.
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