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http://indianaquariumhobbyist.com/community/ :: View topic - Eliminating shrimps from a planted tank (10:30PM - Gotcha!)
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Eliminating shrimps from a planted tank (10:30PM - Gotcha!)
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ArnabPDas
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PostPosted: Tue Apr 07, 2009 11:35 am Post subject: Eliminating shrimps from a planted tank (10:30PM - Gotcha!) Reply with quote

 This  morning  I  lost  another  two  cherry  barbs  to  shrimp  attack.  I  was  stupid  and  I  put  these  monsters  in  when  they  were  a  little  over  an  inch  long  --  thinking  they  were  ghost  shrimps.  
 
 I'm  desparate  and  it  is  impossible  to  catch  those  in  my  tank  without  seriously  damaging  the  plants.  Will  CuSO4  be  fatal  to  fish/plants  if  applied  for  a  short  duration  --  I'll  do  a  large  water  change  immediately  after  the  shrimps  conk.  Bad  plan?


Last edited by ArnabPDas on Tue Apr 07, 2009 10:55 pm; edited 1 time in total
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Madan
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PostPosted: Tue Apr 07, 2009 11:45 am Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 Not  a  bad  plan.  I've  used  CuSO4,  it  does  not  work  quickly,  and  shrimps  will  never  do  well  in  the  tank  after  the  nuking,  is  what  I  feel.
 
 I  went  up  to  0.3  mg/l  concentration  of  CuSO4  in  my  tank.  Nothing  happened  to  the  shrimps  for  the  first  two  days,  then  their  numbers  decreased.  I  was  able  to  net  out  the  last  few  large  buggers  (1  inch  +  )after  4-5  days  when  they  were  really  sluggish.
 The  plants  and  fish  continued  to  do  well  thereafter,  and  so  did  the  ramshorns  that  were  added  later  to  the  tank.  Anymore  shrimps  I  added  died,  but  that  may  be  due  to  pH  related  issues.


Last edited by Madan on Tue Apr 07, 2009 11:47 am; edited 1 time in total
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PostPosted: Tue Apr 07, 2009 11:46 am Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 I  must  add  I  had  0.3  mg/L  CuSO4  in  my  tank  for  a  full  week.
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madhu_ulysses
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PostPosted: Tue Apr 07, 2009 11:51 am Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 Arnab,
 Adding  Copper  sulpahte  would  possibly  nuke  the  entire  balance  of  your  tank.   If  at  all  you  want  you  can  use  KMnO4  as  fishes  and  plants  would  tolerate  it  better  than  CuSO4  and  it  will  eventually  burn  off  the  shrimps.   Better  to  catch  the  large  ones  and  dump  in  a  goby  like  guirus.   It  should't  take  much  time  to  feed  off  all  your  shrimps.
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retro_gk
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PostPosted: Tue Apr 07, 2009 2:23 pm Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 Use  a  trap  before  you  nuke  the  tank.  Plastic  soda  bottle,  cut  about  a  third  of  the  way  down,  invert.  Bait  with  small  piece  of  fresh  fish.  
 
 Make  sure  the  opening  of  the  bottle  is  too  small  for  your  fish  to  get  in.
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beta
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PostPosted: Tue Apr 07, 2009 2:44 pm Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 Are  you  sure  the  shrimps  are  killing  the  cherry  barb  and  not  actually  feeding  on  them  after  they  are  dead?
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praani
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PostPosted: Tue Apr 07, 2009 2:58 pm Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 I  had  the  same  doubt  as  Beta.  Do  shrimps  actually  kill  fish  and  eat?
 I  have  6  cherry  barbs  in  the  quarantine  tank  for  the  last  couple  of  weeks  and  now  your  post  actually  has  me  thinking.
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beta
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PostPosted: Tue Apr 07, 2009 4:02 pm Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 The  Macrobrachium  sp.  can  kill  fishes.  The  ones  with  pincers  are  capable  of  harming  fishes.
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ArnabPDas
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PostPosted: Tue Apr 07, 2009 5:03 pm Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 Thanks  for  the  valuable  inputs  --  Madan  thanks,  I  have  tried  Copper  Sulphate  before  for  treating  parasites  but  those  were  hardy  south  american  cichlids.  I  hope  denisonii  barbs  can  take  it  in  their  stride  too.
 
 Madhu  --  any  dosing  guidance  for  the  permanganate?
 
 Beta  --  I  am  sure  the  killers  are  the  evil  shrimps.  Not  sure  what  species  but  they're  transluscent  with  black  spots  (and  some  very  tiny  golden  spots)  all  over  the  body,  with  huge  blue+orange  pincers.  The  biggest  specimen  I  removed  couple  weeks  ago  was  nearly  5  inches  from  rostrum  to  tail.
 
 Actually  this  weekend  Neil  stopped  by  and  he  too  witnessed  a  dying  cherry  barb  whose  spine  was  mauled  at  the  base  of  the  caudal  fin.
 
 Most  attacks  happen  after  lights  out  and  on  smallish  fish.  The  minimum  damage  inflicted  is  huge  chunks  of  fins  missing  especially  the  caudal  fin.  I  have  seen  them  trying  to  clutch  at  melons  and  cherries  at  feeding  time.
 
 I'm  so  mad  that  everytime  I  see  them  these  days  I  can't  help  think  of  a  nice  steaming  bowl  of  seafood  coriander  soup.  
 
 Seriously,  I  gotta  have  them  get  out  or  put  out  but  can't  go  on  like  this.
 
 
                                                 
beta  wrote  (View  Post):                
Are  you  sure  the  shrimps  are  killing  the  cherry  barb  and  not  actually  feeding  on  them  after  they  are  dead?                
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madhu_ulysses
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PostPosted: Tue Apr 07, 2009 6:00 pm Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 5  gm  of  KMnO4  in  1  litre  of  water.   That  is  the  stock  solution  and  1  ml/5  litre  of  it  for  15-20  mins  could  do  the  job.
 But,  I  wouldn't  nuke  the  tank  just  to  get  rid  of  shrimps  because  it  literally  would  mean,  restarting  the  tank  right  from  ground  0.
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Madan
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PostPosted: Tue Apr 07, 2009 6:31 pm Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 Arnab  my  tank  had  P.  denisonii  when  I  used  CuSO4.
 
 It's  the  same  tank  I  entered  in  IAPCL  years  ago.
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PostPosted: Tue Apr 07, 2009 6:40 pm Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 Flowerhorn  SAAR!!  
 I  do  not  take  any  gaurantee  for  the  plants  though,but  said  that,  having  so  many  snack  around  the  flower  horn  will  not  spend  time  on  plants,  if  it  was  me.
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cichlidlover
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PostPosted: Tue Apr 07, 2009 6:46 pm Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

                                                   
Severumkid  wrote  (View  Post):                
Flowerhorn  SAAR!!  
 I  do  not  take  any  gaurantee  for  the  plants  though,but  said  that,  having  so  many  snack  around  the  flower  horn  will  not  spend  time  on  plants,  if  it  was  me.                

 
 Yes,  but  just  that  there  won't  be  any  fish  either  Very Happy...
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PostPosted: Tue Apr 07, 2009 7:05 pm Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 had  seen  friends  using  african  spikes  to  eliminate  shrimps  some  sp  of  cardinia  also  predatory  in  nature
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ArnabPDas
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PostPosted: Tue Apr 07, 2009 10:54 pm Post subject: Re: Eliminating shrimps from a planted tank Reply with quote

 After  a  long  battle  my  plants  were  covered  in  debris,  and  the  shrimp  was  resting  on  the  bogwood.  I  launched  a  two-pronged  attack  and  captured  it.
 
 Photos  attached  --  anyone  for  id'ing  this  nasty  creature?  I  put  a  teaspoon  next  to  it  for  scale.
 
 PS:  I  flushed  it  down  the  toilet.  That's  very  unlike  me  but  I  have  no  space  for  it.  It  did  it's  job  and  I  did  mine,  no  regrets  and  I'm  ready  for  the  karmic  implications  etc.
 
 And  the  sad  thing  is  that  I  still  have  3-4  would-be-monsters  lurking  aroud  that  I  need  to  take  care  of  in  2  months  time.
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