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http://indianaquariumhobbyist.com/community/ :: View topic - RO/DI for discus tank.
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RO/DI for discus tank.

 
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aquarius
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PostPosted: Fri Jul 16, 2010 2:27 pm Post subject: RO/DI for discus tank. Reply with quote

 Hi  guys,
 Planning  to  increase  my  WC  schedule  to  90%  daily  for  my  450  lt  discus  tank.Owing  to  the  high  TDS  in  the  water,I  have  no  other  option  but  to  give  RO/DI  a  serious  thought.Can  anybody  suggest  a  good  kit  for  my  purpose?
 Swarnendu
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aquarius
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PostPosted: Sat Jul 17, 2010 10:36 am Post subject: Re: RO/DI for discus tank. Reply with quote

 Hi  Friends,
 Awaiting  any  suggestions!
 The  domestic  kits  we  get  in  the  market  (kent,aquaguard)  gives  too  lo  flow.
 Any  specific  kit  meant  solely  for  aquarium  use?
 Swarnendu
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aquarius
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PostPosted: Sun Jul 18, 2010 8:24 pm Post subject: Re: RO/DI for discus tank. Reply with quote

 Any  suggestions  anybody?
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gremlin
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PostPosted: Sun Jul 18, 2010 9:04 pm Post subject: Re: RO/DI for discus tank. Reply with quote

 I  dont  think  RODI  water  is  good  for  fresh  water  tank  cause  it  will  remove  everything.  Its  ok  in  marine   tanks  cause  the  salt  replinish  the  lost  minerals.  I  may  be  wrong.
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nytyn
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PostPosted: Sun Jul 18, 2010 10:25 pm Post subject: Re: RO/DI for discus tank. Reply with quote

 Aquarius,
 
 I  used  to  do  99%  water  changes  for  2  tanks,  thrice  a  day,  when  I  was  growing  out  some  discus  juveniles.  Pumped  them  up,  and  they  grew  really  well!  Frankly,  I  was  absolutely  jobless,  and  had  nothing  else  to  do  then!!!
 
 RO  is  a  good  option,  but  actually  there  are  a  few  ifs  and  buts.  You  have  a  450  liter  tank  and  want  to  do  90  percent  daily  water  changes.  This  means  you  will  need  about  450  to  500  liters  of  water  a  day.  In  case  you  upgrade  to  more  tanks,  you  will  be  restricted  if  you  buy  something  which  can  give  you  only  500  liters  per  day.
 
 So  I  would  suggest  you  buy  an  RO  unit  which  will  churn  out  1000  liters  in  at  least  10  hours,  meaning  you  are  looking  at  100  liters  per  hour.
 
 Another  thing  is,  as  Gremlin  said,  RO  will  be  too  flat  and  bland,  and  you  can  actually  mix  10  percent  of  your  source  water,  so  you  have  all  the  trace  elements  and  minerals  in  it,  at  decent  levels.  For  this  purpose  too,  having  one  or  2  drums  where  the  RO  water  will  be  filled,  and  then  used  will  be  convenient,  as  you  can  maintain  consistency  in  mixing.
 
 Check  this  out:
 
 http://www.hitechro.net/shop.php?pid=11
 
 If  you  might  be  interested  in  softening  your  water  by  Ion  Exchange  using  resins,  you  could  look  at  the  Water  Softener  made  by  Kent.  See  if  it  helps:
 
 http://www.kent.co.in/product/watersoftener_autosoft366.aspx
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essabee
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PostPosted: Mon Jul 19, 2010 12:02 am Post subject: Re: RO/DI for discus tank. Reply with quote

 Swarnendu,  without  knowing  what  your  supply  water  is  like  -  answers  to  your  real  question  can  only  be  an  academic  one  totally  unmatched  to  the  real  practical  aspect.
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aquarius
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PostPosted: Mon Jul 19, 2010 12:49 am Post subject: Re: RO/DI for discus tank. Reply with quote

 Hi  everybody,
 Gremlin,at  least  10-20%  mixing  was  always  in  my  mind.RO/DI  removes  even  essential  minerals.
 Nytyn,pretty  much  the  answer  I  was  looking  for.Thanks  for  the  link.Basically  what  I  need  is  a  commercial  RO  system  as  no  domestic  unit  will  give  me  the  qty  I  need.Anyway,chkd  out  a  DI  product  meant  for  aquariums  at  Fresh  n  Marine  store.Perhaps  Nirav  can  throw  some  light  on  this  subject.
 Essabee,  as  far  as  I  know  the  TDS  in  our  locality  is  around  1500.That  would  drastically  reduce  the  longevity  of  any  domestic  RO  unit,  to  say  the  least.
 Regards
 Swarnendu
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nytyn
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PostPosted: Mon Jul 19, 2010 1:18 am Post subject: Re: RO/DI for discus tank. Reply with quote

 If  your  TDS  is  very  high  your  membrane  life  will  be  lesser  than  optimum.  Anyways  thats  what  its  function  is  and  you  will  have  to  live  with  it.  
 
 You  could  also  look  at  raising/breeding  some  cichlids  with  the  waste  water  if  you  make  it  flow  thru  a  and  and  house  cichlids.
 
 And  RO  systems  are  actually  just  like  computers  now.  If  you  do  your  research,  you  will  know  what  you  need.  You  can  buy  the  components  in  modules,  and  plumb  them,  and  you  will  get  a  very  good  deal.  Thats  if  you  are  a  perfectionist  and  dont  mind[in  fact  love]  getting  your  hands  dirty.
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aquarius
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PostPosted: Mon Jul 19, 2010 10:37 am Post subject: Re: RO/DI for discus tank. Reply with quote

 Thanks  Nytyn.
 Love  your  suggestion.But  the  only  cichlid  that  I  can  think  of  is  the  discus  and  must  resort  to  whatever  the  King  demands!
 What  I  feel  is  a  little  bit  of  research  on  RO  systems  is  in  cards  for  me.
 I  started  my  professional  journey  as  an  aircraft  technician  &  really  won't  mind  getting  my  limbs  dirty.Maybe  someday  I  will  be  able  to  post  a  thread  on  a  DIY  RO/DI  kit  to  help  fellow  sufferers  of  this  community.  Thumb Up  
 Thanks  again.You  have  been  of  great  help!  Thumbs Up  
 Swarnendu
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