20 gallon long filtration

[gm72]

Planning either one or two 20 gallon long tanks as some of you already know. Filtration will be via HOBs. I'm thinking dual AC 30s with sponge prefilters. Too much current though?

[Drumachine09]

I dont think you would have a current problems. These are going for the adult swordtails, no? They should be fine.

[gm72]

Right. Will be for growing out tanks for swordtails, maybe eventually fancy guppies.