Jebao WP10 or Koralia (240gph) on nano?

[daplatapus]

I also have a WP25 in my 18" X 18" X 18" cube. On it's lowest setting, I have no doubt you can set it up to not create a wave. I have mine 2/3 of the way down pointing up and on it's middle setting it gets about 1/2"-3/4" wave going. But even then you can slow the pulse so it just breaks the surface and doesn't actually create a wave.
I'd recommend going with a WP25.

[corpusse]

I was VERY skeptical of the jebao pumps initially, but after using a couple of WP 40's for several months I'd never buy another brand of powerhead, except maybe some maxijets for utility purposes I've owned many Koralia's, Tunze's and Eco Techs.

For price / performance they can't be beat. Even just for performance it's tricky then you factor in price its a no brainer imo.

[freeze]

A wp25 on a 7.7 gallon? I tried a 25 on my 18x18x18 cube on the lowest setting and ended up cleaning up water from my floor, way to much. I have 1 wp10 on it and it stays on the lowest setting. That's a 25g tank. I would go with the K240

[nrosdal]

1 wp10 would do well. i have a wp10 on my 20gal anemone tank and it can make a small wave if needed but on the else mode just makes some decent flow. On a 10 gal it would make good flow for the whole thing and with a bare bottom no worry of a sand storm.