is my flow rate ok

  • We are currently upgrading MFK. thanks! -neo

agreeive?fish

Gambusia
MFK Member
Jan 2, 2007
429
3
18
oklahoma
ok i got the resuce oscar into the 210g now. the tank is set up like i do my salty tanks with a sump, return pump (500gph) 3 powerheads of 1200 gph
 
If that's before head loss then you are probably only seeing about 200-300gph, depending on how good the pump is. That is only turning your tank over through the filter about 1X per hour. I think you need to get a larger pump or more pumps to increase that to about 5-6X per hour. With that, you can probably get rid of all three of the power heads.

For example, my 220 will be running through a 55gal sump, for a total of 275gal system. Now, the way tanks are measured and since the sump won't be filled completely to the top, so I decreased my system gallons to an estimated 250 gallons. To get the total turnover rate I multiplied that 250 gallons by 6X for a total turnover of 1,500gph. I decided to go with the Rio 20HF pump because at 4-5' head height the pump is capable of flowing 800-900gph. With this, I can install hand valves on the pumps to throttle them back a little bit, if I need to.

I think you need to increase the flow through your sump and do away with the power heads, but wait for others' responses because there may be some differing opinions.
 
actually i have a mag18 on order the mag(5or7) running now is my emergency backup pump..even then ill run powerhead(s), i might increase the number(decrease the gph) or reduce the number with the current gph(s) ..gotta play with the angles to see what gives me the water flow/circulation iam wanting to get,,,but i DONOT want to have too much flow for the oscar,(rescued from a 10g home tank that was sold to the people at walmart when they got the oscar) the huge redtail "shark"(from a 55g). Still considering possible tank mates for these 2 fish. and have got to find the right hidey hole/decorations instead of pvc pipe so the tank dont look getto
 
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