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http://indianaquariumhobbyist.com/community/ :: View topic - Questions regarding changing CO2 Cylinder
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Questions regarding changing CO2 Cylinder

 
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msghael
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PostPosted: Fri Nov 28, 2008 3:09 pm Post subject: Questions regarding changing CO2 Cylinder Reply with quote

 Hi  all,
 I  have  a  4'  x  2'  x  2'  planted  tank  with  CO2  injection  with  a  3  lit  cylinder,  240  W  lighting  (approx  2.40  w/g),  Eheim  2217  filter  and  has  been  running  since  July  @  3bps  approx.  This  is  my  first  ever  planted  tank.  The  fauna  is
 
 Angles  7
 Clown  loach  2
 Albino  corys  5
 and  pleco  (each  about  3")  2
 
 My  questions  are.  
 
 
    Approx  how  long  can  I  expect  the  cylinder  to  last  ?
     When  I  remove  the  cylinder  for  refilling  (approx  7  -  10  days)  do  I  start  the  air  pumps  ?
     Without  the  CO2  do  I  reduce  the  dozing  or  do  I  stop.  I  follow  the  EI  method  for  micros  &  macros  ?
     Do  I  reduce  the  lighting  or  switch  it  off  during  this  period  and  allow  only  the  natural  room  light  ?

 
 Regards
 Maninder
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Shreyasmrao
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PostPosted: Fri Nov 28, 2008 3:51 pm Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

 HI  Maninder,
 
 The  CO2  should  last  you  about  6  months  at  2  Bubbles  per  second  and  24  hours  a  day.  When  you  remove  the  cylinder  for  refill,  do  everything  else  you  dont  need  the  air  pumps,  as  you  will  then  replace  CO2  with  O2,  which  is  useless  to  the  plants  for  Photosynthesis.  refill  unders  normal  circumstances  should  not  take  more  than  one  day  though.  Not  all  aquariums  have  CO2  supplement  and  the  water  has  some  CO2  provided  by  the  fish  and  also  from  the  atmosphere,  so  I  would  suggest  you  keep  the  lights  on  and  perhaps  reduce  the  time  you  keep  them  on.  I  have  no  idea  on  the  MIcro  and  Macro  dosing  as  I  use  ADA  and  some  ADA  supplements  for  the  plants.
 
 This  is  what  I  did  (as  I  have  a  very  small  cylinder  as  of  now  and  it  gets  over  every  month  Smile  ).  Wait  for  the  experts  to  confirm  /  suggest  otherwise  and  maybe  I  will  pick  up  some  additional  tips  when  the  write  in.
 
 Cheers
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msghael
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PostPosted: Fri Nov 28, 2008 5:58 pm Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

 Thanks  Shreyas,
 
 I  had  mentioned  the  air  pump  for  the  fish.  
 In  the  begining  The  CO2  line  had  opened  out  from  the  bubble  counter.  
 When  we  noticed  it  it  may  have  been  after  I  don't  know  when  and  the  fish  were  gasping  with  one  of  the  angles  gasping  flat  on  it's  side  on  the  floor.  I  did  a  quick  >50%  water  change  to  bring  in  more  oxygen  and  ofcourse  reconected  the  pipe.   Fortunately  I  didn't  loose  any  fish  and  checking  the  pipe  line  has  become  part  of  the  daily  check  list  !
 
 Regatds
 Maninder
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Tirtha C
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PostPosted: Fri Nov 28, 2008 6:51 pm Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

                                                   
msghael  wrote  (View  Post):                

 Without  the  CO2  do  I  reduce  the  dozing  or  do  I  stop.  I  follow  the  EI  method  for  micros  &  macros  ?
 Do  I  reduce  the  lighting  or  switch  it  off  during  this  period  and  allow  only  the  natural  room  light  ?[/list]
                 

 
 1.  Reduce  dosing.  Instead  of  3xweek  do  it  once.
 2.  Reduce  the  photo  period  to  Half.  
 3.  Do  larger  water  changes.
 4.  Refill  the  cylinder  ASAP.
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msghael
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PostPosted: Fri Nov 28, 2008 8:35 pm Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

 Hi  Tirtha,
 What  about  oxygeneting  the  tank  (air  pump)  for  the  fish  for  the  duration  the  CO2  is  not  available.  What  I  have  been  informed  by  the  source  is  that  it  could  be  approx  10  days  unless  I  keep  a  spare  which  I  do  not  want  to  for  reasons  of  safety.
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msghael
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PostPosted: Mon Dec 01, 2008 6:43 am Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

 To  the  Planted  Gurus,
 Do  Ineed  to  oxygenate  the  tank  with  fish  during  the  period  of  no  CO2  ?
 Regards
 Maninder
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sudFish
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PostPosted: Mon Dec 01, 2008 9:21 am Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

 do  you  oxygenate  the  tank  now?  When  you  are  doing  a  cylinder  change  how  will  it  matter?
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msghael
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PostPosted: Mon Dec 01, 2008 1:32 pm Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

 No  I  don't  oxygenate  the  tank  now.  Light  +  CO2   =  Photosynthesis  does  it  for  me.
 My  question  is   :  Will  only  the  reduced  lights  without  CO2  (and  without  the  air  pump)  provide  enough  oxygen  over  a  period  of  about  10  days  with  the  fish  load  described  above.
 Regards
 Maninder
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Tirtha C
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PostPosted: Mon Dec 01, 2008 2:34 pm Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

                                                   
msghael  wrote  (View  Post):                
Hi  Tirtha,
 What  about  oxygeneting  the  tank  (air  pump)  for  the  fish  for  the  duration  the  CO2  is  not  available.  What  I  have  been  informed  by  the  source  is  that  it  could  be  approx  10  days  unless  I  keep  a  spare  which  I  do  not  want  to  for  reasons  of  safety.                

 
 No  need  of  oxygeneting.  Your  fishes  will  be  doing  fine.
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sandeepraghuvanshi
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PostPosted: Mon Dec 01, 2008 3:10 pm Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

 Your  plants  will  not  stop  photosyenthesis  during  the  low  co2  period,  it  will  only  slow  down.  Even  then  there  will  be  enough  o2  for  your  fish.
 You  should  not  have  problems  of  low  O2.
 BTW  you  do  seem  to  have  a  number  of  bottom  dewelling  fish,  cory's,  clown  loach,  pleco.  How  are  your  plants  doing  with  them.
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Seetharam
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PostPosted: Mon Dec 01, 2008 3:46 pm Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

                                                   
msghael  wrote  (View  Post):                
My  question  is   :  Will  only  the  reduced  lights  without  CO2  (and  without  the  air  pump)  provide  enough  oxygen  over  a  period  of  about  10  days  with  the  fish  load  described  above.                

 
 Yes,  you  dont  need  to  run  an  airpump.
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msghael
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PostPosted: Mon Dec 01, 2008 6:24 pm Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

 Hi  Tirtha  and  Sandeep  Raghuvanshi,
 
 Thank  you  for  the  confirmation.
 Regarding  the  bottom  dwellers  in  a  planted  aquarium,  I  have  not  had  any  problem  worth  writing  home  about.  May  be  because  the  fish  are  small.  The  loaches  are  just  2"  and  the  plecos  about  3".  The  corys  would  be  around  an  inch.  I  will  be  disposing  the  plecos  once  they  grow  bigger  and/or  when  I  have  the  confidence  of  an  algae  free  tank  without  an  algae  eater.  Though  going  by  the  posts  this  is  rare  at  my  level  (greenhorn  of  5  months  experience)
 
 I  have  had  the  rare  problem  of  a  freshly  replanted  or  a  new  plant  floating  up  within  minutes  of  putting  them  in  but  I  think  it  is  more  due  to  lack  of  expertise  in  fixing  the  plant  because  the  occurance  is   rare.  Also,  after  a  few  attempts  the  plant  stays  put.  Once  that  happens  I  do  not  have  any  further  problem.
 
 Regards
 Maninder
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Preeths
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PostPosted: Mon Dec 01, 2008 7:08 pm Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

 Use  surgical  tongs,  they  are  the  best  for  the  job  of  planting  under  water.  Use  pointed  ones  for  hair  grass  and  carpet  plants,  and  blunt  ones  for  bigger  plants.
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msghael
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PostPosted: Wed Dec 03, 2008 6:43 am Post subject: Re: Questions regarding changing CO2 Cylinder Reply with quote

 Hi  Preeths,
 Yeh.  I  suppose  that  is  know-how.  Now  what  remains  is  to  learn  the  do-how  ie  practise.
 Thanks  for  the  input
 Regards
 Maninder
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