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http://indianaquariumhobbyist.com/community/ :: View topic - the Estimative index
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the Estimative index
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sundar
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PostPosted: Tue Jun 07, 2005 11:21 am Post subject:  Reply with quote

                                                   
murthy  wrote:                
This  may  be  a  dud  question....please  pardon.
 
         Would  it  be  ok  to  use  old  aquarium  water  from  another  fish  only  tank  to  make  water  changes  on  the  planted  tank?(for  example  a  discus  tank,where  water  changes  are  done  daily)....i  figured  that  would  be  like  adding  minor  quantities  of  nitrates.That  cannot  be  bad.There  is  a  serious  issue  on  water  usage,especially  when  fish  nuts  like  me  use  HUGE  amounts  of  water!
 
       Thanks  again!  Smile                

 
 Hi  Murthy
 
 I  dont  think,  it  is  a  Bad  Idea,  Try  it,  and  let  us  know,  if  there  is  any  Drastic
 Changes.  Very Happy
 
 Regards
 Sundar
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plantbrain
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PostPosted: Thu Jun 09, 2005 10:50 am Post subject:  Reply with quote

                                                   
murthy  wrote:                
This  may  be  a  dud  question....please  pardon.
 
         Would  it  be  ok  to  use  old  aquarium  water  from  another  fish  only  tank  to  make  water  changes  on  the  planted  tank?(for  example  a  discus  tank,where  water  changes  are  done  daily)....i  figured  that  would  be  like  adding  minor  quantities  of  nitrates.That  cannot  be  bad.There  is  a  serious  issue  on  water  usage,especially  when  fish  nuts  like  me  use  HUGE  amounts  of  water!
 
       Thanks  again!  Smile                

 
 Should  be  fine  and  pre  fertilized.
 
 regards,  
 Tom  Barr
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Nanu
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PostPosted: Wed May 30, 2007 9:32 pm Post subject: Re: the Estimative index Reply with quote

 This  a  super  write  up  by  the  guru..
 Admins:  Dont  you  think  Tom's  article  is  worthy  of  a  Sticky  in  this  Topic..??  Or  atleast  a  consideration...?
 I  can  clearly  say  this  is  one  of  the  best  posts  on  IHA..thank  you.
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cokeamod
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PostPosted: Tue Sep 04, 2007 9:14 pm Post subject: Re: the Estimative index Reply with quote

 We  need  no3  level  =  5-30ppm
 and  that  of  K  =  20-30ppm
 
 So  when  we  dose  only  KNO3,  can  we  assume  that  when  dosing  it  to  get  a  NO3  level  of  approx.  20ppm,  even  the  K  rises  to  the  same,  that  is,  20ppm??
 
 what  i  mean  is  that  K  level,  when  not  using  K2SO4,  is  the  same  as  NO3  level  when  dosing  just  KNO3??
 
 And  if  that  is  indeed  the  case,  how  much  of  an  estimated  level  of  that  solution  should  we  go  for?  20ppm?
 
 regards,
 amod.
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loaches-n-tetras
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PostPosted: Mon Nov 01, 2010 8:23 am Post subject: Re: the Estimative index Reply with quote

 Thanks  Tom,  I'm  going  to  put  this  into  practice  and  see  how  things  turn  out.   Will  keep  this  thread  updated  with  time
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shri-novice
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PostPosted: Wed Apr 17, 2013 7:48 pm Post subject: Re: the Estimative index Reply with quote

 can  anyone  tell  me  which  ratio  is  suggested-
 http://www.vardhamanfertilizers.net/npk-fertilizer.html
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Athreyan
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PostPosted: Wed Apr 17, 2013 11:46 pm Post subject: Re: the Estimative index Reply with quote

 Shri-novice:  Don't  buy  NPK  ferts.  They  contain  ammonia  &  potash  which  will  be  very  catastrophic.  People  bought  only  Microsol-B,  for  micronutrient  fertilization.  That  also,  I'm  told,  is  not  all  that  good  nowadays.
 
 But,  honestly,  I  did  not  understand  your  query.
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Darius
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PostPosted: Thu Apr 18, 2013 3:29 am Post subject: Re: the Estimative index Reply with quote

 Whoa!  Tom  Barr  here  ...
 
 I  didnt  know  that  -  Swear  by  the  DSM
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Athreyan
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PostPosted: Thu Apr 18, 2013 7:25 am Post subject: Re: the Estimative index Reply with quote

 Darius,
 Yes,  I  was  thrilled  the  first  time  I  saw  this  thread.  and  a  lovely  thread  too  for  followers  of  Tom  &  EI.  But  if  you  noticed,  this  is  a  3  year  old  thread,  and  Tom's  been  here  for  a  while  now.
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Darius
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PostPosted: Thu Apr 18, 2013 7:19 pm Post subject: Re: the Estimative index Reply with quote

 Which  is  why  I  said  -  I  didn't  know  that.  
 
 Surely  you  can  read  better  Sir
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Athreyan
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PostPosted: Thu Apr 18, 2013 7:25 pm Post subject: Re: the Estimative index Reply with quote

 My  bad!  I  thought  you  were  saying  you  didn't  know  Tom  was  on  IAH,  as  opposed  to  the  thread  itself.
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Darius
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PostPosted: Thu Apr 18, 2013 8:08 pm Post subject: Re: the Estimative index Reply with quote

 Aaah  !!  ok   ..
 
 All  cool  then   Drinking
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shri-novice
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PostPosted: Fri Apr 19, 2013 9:44 am Post subject: Re: the Estimative index Reply with quote

                                                   
Athreyan  wrote  (View  Post):                
Shri-novice:  Don't  buy  NPK  ferts.  They  contain  ammonia  &  potash  which  will  be  very  catastrophic.  People  bought  only  Microsol-B,  for  micronutrient  fertilization.  That  also,  I'm  told,  is  not  all  that  good  nowadays.
 
 But,  honestly,  I  did  not  understand  your  query.                

 
 Well  I  heard  from  one  of  hobbyist  that  he  is  dosing  NPK  Salts  as  per  Estimated  index  but  i  must  have  confused  with  NPK  term  &  compared  it  with  these  ferts.
 Just  want  to  gather  stuff  as  per-http://www.theplantedtank.co.uk/EI.htm
 
 As  Madan-Admin  mentioned  in  one  of  thread  very  very  long  time  ago,  that  those  can  be  obtained  from  Vardhmaan  so  I  posted  a  link  if  those  ferts  he  were  pointed  out.
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Athreyan
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PostPosted: Fri Apr 19, 2013 10:10 am Post subject: Re: the Estimative index Reply with quote

 I  think  you  already  know  this,  but  let  me  just  repeat  it  anyway.  N  (Nitrogen),  P(Phosphorus)  &  K(Potassium)  are  nutrients  that  plants  need  in  larger  quantities  (though  not  in  their  elemental  form).  That's  why  they  are  called  'macro'  nutrients.  Much  like  how  humans  need  protein  &  carbohydrates.  Similarly,  we  humans  need  vitamins,  but  in  much  smaller  quantities.  And  plants  need  other  elements  like  Ca,  Mg,  B,  Mb  and  so  on  in  small  quantities.  So  they  are  called  'Micro'  nutrients.
 
 NPK  is  given  to  terrestrial  plants  using  the  widely  available  NPK  fertilizers.  While  this  can  be  beneficial  to  aquatic  plants  also,  we  have  to  keep  fish  health  also  in  mind.  And  components  like  potash  &  ammonia  &  urea  are  very  dangerous  for  fish.  Which  is  why  run-off  water  from  chemically  fertilized  farms  are  causing  problems  to  freshwater  habitats  in  the  real  world.
 
 So,  as  an  alternative  we  fishkeepers  use  salts  that  contain  these  components  AND  will  not  harm  the  fish.
 
 Do  not  confuse  NPK  salts  &  NPK  ferts.  We  use  salts  to  make  fertilizers  for  our  aquaria.
 
 Typically,  you  would  use  KH2PO4,  KNO3,  K2SO4  to  fertilize  your  tank  plants  for  macros.  These  can  be  got  from  any  place  that  deals  with  laboratory  chemicals.  These  are  the  same  salts  that  would  be  available  in  a  school  chemistry  lab.  the  proportions  of  mixture,  dosing  etc  are  widely  available  on  the  net.  So  you  can  look  out  for  that.  If  you're  trying  out  EI  method,  go  to  Tom  Barr's  Website.  You  will  find  detailed  explanations  &  discussions  on  the  topic.  Tom  Barr  is  the  one  who  devised  this  method.  So  it  is  all  the  better  you  get  info  from  his  own  website.
 
 On  how  to  source  these  chemicals,  locals  will  be  able  to  guide  you  better.
 
 Also,  I'm  sure  you're  aware  of  the  regular  MAM  meets  that  happen  in  Mumbai.  Go  to  one  of  them  and  ask  the  experts.  They  will  have  all  the  answers.
 
 Good  Luck!   Thumb Up
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