80 gallon filter for a 30 gallon tank

crazie.eddie

If you use mechanical and bioligical media, then there is no issues with not having enough ammonia and nitrItes for the nitrifying bacteria to consume. Also, keep in mind, bacteria will only colonize to equal the amount of the bioload. For example, if you have a 100 gallon tank with a 100 gallon rated filter, but only have 1 angelfish, the bacteria available will only be enough to support that 1 angelfish, not a full 100 gallon tank full of fish.

JouteiMike

What kind of filter are we dealing with anyway? And what kind of tank? How many fish and what kinds?

Like everyone said, it shouldn't be a problem, as long as the current isn't too powerful, unless of course, you have fish that prefer fast moving currents.

jinithith2

you can attach strips of plastic bottles to the return slot to deflect and disperse the flow. I have had it on my HOT whisper filter rated for 20-30 gallons on a 5 and a 10 gallon with the plastic strip mod and the fish don't seem bothered :D

I would say it is never bad to overfilter :D

tophat665

Have you got a pic of that filter mod? I'm pondering how to current kill an HOB.

jinithith2

nop srry it was like two years ago :(
If I could fin a way to do it to my new filter, I'll post some pics. the return slot is slightly diff...

srry for the bad typing, Im trying to control a nosbleed right now

St6_Devgru

ouch.....

MilitantPotato

I can't find the site, but if you cut the top and bottom off a soda bottle , slice it down the side top>bottom, you can sort of clip it under the filter, and over the top, it should stay in place fairly well and divert the water to the left and right which lowers the current.

St6_Devgru

BE VERY CARFUL the sides can cut yuor fish bad and can hurt really bad.

tophat665

If you're very carful, you can melt the edges with a heat gun (recommended) or cigarette lighter (not recommended).