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http://indianaquariumhobbyist.com/community/ :: View topic - internal Filter Design for 120 GAL- advice needed: COMPLETED
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internal Filter Design for 120 GAL- advice needed: COMPLETED
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saurabh_m
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PostPosted: Tue May 20, 2008 6:13 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 Preeths  try  covering  the  open  area  with  foam  with  a  piece  of  used  vest.
 It  works  with  me.  Smile
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diwan
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PostPosted: Tue May 20, 2008 6:19 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 Preeths  I  am  also  in  the  process  of  building  a  similar  filter,  only  difference  is  I  am  contemplating  Â whether  to  stuff  Â my  4  Â inches  dia  PVC  pipe  with  nylon  mosquito  netting  or  other  media.Another  option  is  to  cut  the  pipe  into  half  along  length  wise  and  place  it  inclined  on  top  of  the  aquarium.Some  type  of  filter  media  should  be  placed  in  the  pipe.  Advantage  is  better  aeration.Though  I  have  all  the  material  Â the  DIY  is  just  getting  postponed.
 
 Dinesh.
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Hamza
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PostPosted: Tue May 20, 2008 6:31 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 A  suggestion  
 You  can  close  the  top  with  a  threaded  PVC  socket,  drill  two  3/4"  holes  in  in  the  threaded  cap  that  for  inlet  and  outlet.  Connect  a  spray  bar  to  the  outlet,  you'll  have  more  movement  in  water.  
 
 We  can  also  make  internal  Fluidised  bed  filter  in  similar  fashion.
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saurabh_m
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PostPosted: Tue May 20, 2008 6:31 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 I  think  IQSS  also  made  a  similiar  filter.
 See  the  link
 http://indianaquariumhobbyist.com/community/modules.php?name=Forums&file=viewtopic&t=6656
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Preeths
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PostPosted: Tue May 20, 2008 10:41 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 (See  design)The  water  is  pumped  to  the  bottom  of  the  PVC  pipe.  The  water  gets  filtered  through  the  media  as  it  rises  up  and  cleans  water  flows  off  the  top.  That’s  the  way  I  designed  it  so  I  don’t  have  to  worry  about  flooding  by  using  an  external  filter  which  might  fail.  A  top  filter  for  me  was  not  a  option  because  I  wanted  good  lighting  in  the  future  and  it  would  get  in  the  way…
 
 If  you  consider  the  design  it  is  the  exact  opposite  of  a  canister  filter.
 
 -It  is  inside  the  aquarium  v/s  outside  for  canister
 -Water  technically  enters  the  bottom  of  the  filter  and  rises  up  getting  filtered  in  the  process  v/s  top  down  due  to  gravity  in  a  canister
 -A  canister  filter  has  about  5"X10"  space  inside  for  media  v/s  5"X22"  inch  here,  so  I  have  more  surface  area  for  Bacteria  to  inhabit.
 
 Water  overflows  out  of  the  filter  into  the  tank  with  out  the  use  of  pump,  since  the  whole  thing  is  inside  the  tank  you  don’t  have  to  worry  about  flooding  your  floor.
 
 The  water  that  flows  out  produces  enough  surface  agitation  for  oxygen  to  dissolve,  I  have  a  bubble  screen  but  that  is  my  paranoid  side  that  believes  in  lots  of  backup.
 
 If  the  pump  fails  the  water  in  the  filter  will  still  be  present  so  I  won’t  have  to  worry  about  bacteria  dying.
 
 The  down  side:
 Not  much  lateral  current  is  created  so  it  takes  long  to  clear  the  whole  tank.(but  I  believe  less  current  is  good  for  a  planted  tank)  I  have  a  spare  pump  I  have  not  yet  installed  to  circulate  the  water  in  the  tank;  once  this  is  done  there  filtration  of  the  mulm/debries  if  any  should  be  faster.
 It  will  looks  out  of  place  in  the  tank  unless  you  hide  it  with  decorations.
 
 
 I  will  keep  you  guys  posted  on  the  developments...  Since  this  is  DIY  i  think  i  can  say  how  much  it  cost  me.  Apart  from  the  pumps  the  other  stuff  used  to  make  the  filter  cost  about  Rs.220.  The  Pump  cost  me  about  430.
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Preeths
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PostPosted: Tue May 20, 2008 10:50 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

                                                   
diwan  wrote  (View  Post):                
Preeths  I  am  also  in  the  process  of  building  a  similar  filter,  only  difference  is  I  am  contemplating  Â whether  to  stuff  Â my  4  Â inches  dia  PVC  pipe  with  nylon  mosquito  netting  or  other  media.Another  option  is  to  cut  the  pipe  into  half  along  length  wise  and  place  it  inclined  on  top  of  the  aquarium.Some  type  of  filter  media  should  be  placed  in  the  pipe.  Advantage  is  better  aeration.Though  I  have  all  the  material  Â the  DIY  is  just  getting  postponed.
 
 Dinesh.                

 
 The  Plastic  scrubs  mentioned  by  Hamza  are  the  best  idea.  easy  to  clean  and  maintain.
 
 If  you  try  making  a  top  filter  cutting  the  pipe  in  half,  there  wont  be  enough  water  pressure  to  have  good  filtration  with  most  of  the  water  overflowing.  How  will  you  hold  the  pipe  in  the  inclined  position?
 
 I  did  not  want  to  go  with  a  spray  bar  etc  because  it  would  complicate  the  design  and  the  drilling,  fixing  may  take  a  more  skilled  person  with  some  specific  gear.  all  i  needed  was  a  Hack  saw  blade  in  terms  of  equipment.
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Preeths
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PostPosted: Mon Jun 23, 2008 9:52 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 35  days  and  running  with  no  fatalities  till  date.  I  cleaned  the  filter,  and  there  was  enough  stuff  in  it  to  prove  that  it  is  doing  its  job  and  is  a  good  design.  Cleaning  the  scrubs  which  collected  the  brown  stuff  was  easy;  just  hold  it  under  the  tap  and  it  gets  clean.  
 
 Total  time  to  take  apart  and  clean:  15  minutes.  Time  to  reassemble:  5  minutes
 
 Current  Stock:
 
 2  green  Terrors::  5inch  and  6  inch
 2  green  severum::  4  inch  each
 2  rainbow  shark::  6  inch  each
 1  yellow  lab::  4.5  inch
 5  yoyo  loaches::  3  inch  each
 
 3  Pleco::  4  inch  each  (  moved  from  one  tank  to  another  every  week  to  clean  algae  and  its  working)
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Hamza
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PostPosted: Mon Jun 23, 2008 11:30 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 Great  going  mate!  BTW  theres  nothing  in  your  filter  except  pump  that  can  go  wrong.
 
 would  love  to  see  your  tank  with  inhabitants  and  that  huge  driftwood.
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ilango_slk
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PostPosted: Tue Jun 24, 2008 8:19 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 Preeths,  don't  clean  all  the  scrubs  at  the  same  time.  If  you  do  then  the  filter  needs  to  cycle  again  to  get  back  the  bacteria...
 
 Ilango
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PostPosted: Wed Jul 02, 2008 5:32 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 Hi  Preeth,
 
 Thats  an  excellent  effort  you  have  made,  even  I  have  invented  a  tank  cleaner.  It  works  only  for  2  hrs  and  it  sucks  away  all  the  gunk  and  wastes.  I'll  post  its  picture  and  diagram  later.  its  a  single  piece  unit  and  uses  very  little  space.  But  the  best  1  is  the  one  which  is  posted  on  this  site  for  large  tanks,  its  the  best.
 
 But  can  anyone  tell  me  :-
 
 1)  Which  bacteria  is  most  common  in  a  crowded  Tank?
 2)  Which  material  dissolves  or  absorbs  ammonia  and  makes  it  harmless
 3)  What  is  the  best  remedy  to  excel  these  reactions   ammonia  >  Nitrate  >Nitrites  ?
 4)  How  to  return  the  oxygen  back  into  the  tank  water?
 
 kind  regds
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Preeths
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PostPosted: Wed Jul 02, 2008 7:16 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 Garothmaan-  Nice,  post  pictures  under  a  new  thread  so  that  all  can  benifit  from  your  innovation.
 
 Search  for  cycling  a  tank  on  the  forum  and  you  will  get  answers  to  your  questions
 
 Ilango-  I  clean  the  scrubs  but  the  bio  balls  that  form  40%  of  the  filter  media  is  not  touched  so  no  worries  about  loosing  the  cycle.  There  is  lots  of  substrate,  rocks  and  driftwood  in  the  tank  too  that  can  support  bacteria  colonies.
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kunalrsingh
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PostPosted: Wed Jul 02, 2008 7:35 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 Preeths,
 can  you  post  a  pic  of  the  drawing  board  pins  and  how  they  are  positioned  to  hold  the  pipe  straight?
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Hamza
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PostPosted: Wed Jul 02, 2008 7:53 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 Nice  clean  tank  Preeths!  lovely  GTs!  but  the  placement  of  rocks  and  wood  seems  a  bit  odd.
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PostPosted: Wed Jul 02, 2008 10:03 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 Kunal:
 
 Drawing  board  clips  actually.  made  from  plastic.  The  picture  is  there  in  my  previous  post  on  this  thread.  Its  the   DSC03363.jpg  picture.  it  costs  about  RS  16  for  a  pack  of  4.  I  will  post  a  picture  of  the  individual  clip  tomorrow  once  my  camera  battries  are  charged.
 
 Hamza:
 
 The  piece  of  drift  wood  is  about  3  feet  long  about  18  inches  high  and  wide.  and  thats  the  only  way  it  can  be  placed  in  the  tank.  The  arrangement  is  such  that  the  best  view  of  the  tank  can  be  seen  sitting  on  a  sofa  adjacent  to  the  tank  near  the  base  of  the  drift  wood;  hence  the  odd  rock  arrangement.
 
 Got  this  piece  of  mother  of  all  drift  wood  on  our  May  31  collection  trip.
 
 In  the  large  tank  all  the  fish  went  through  a  sudden  growth  phase.  All  are  nice,  healthy  and  bulky  now.
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PostPosted: Wed Aug 06, 2008 11:00 pm Post subject: Re: internal Filter Design for 120 GAL- advice needed: COMPL Reply with quote

 75  days  update:  In  case  you  guys  were  wondering  if  this  design  works  or  not  Smile  
 
 Filter  is  working  fine  with  no  problems.  Added  a  300l  per  hour  power  head  for  circulation  in  the  tank.  Water  is  crystal  clear.
 
 The  filter  need  to  be  cleaned  every  25  or  30  days.
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