Jebao WP10 or Koralia (240gph) on nano?
 

Looking for some advice.
I have a basic rectangular nano tank that I just built and all in one chamber on. Dimensions for the water in the display are 14.5" x 11.25" x 11". Total water volume in display section is only 7.7 gallons.

The overflow is a long oval slot that measures 5"x 3/8"

I don't think the overflow will handle a wave very well, the water level is only 1/2" for the top and its rimless, so if I go the Jebao route it would only be used on a steady mode.

I want a powerhead that's small, no wave, and provides enough flow so that detrius doesn't settle on the bottom... It's a bare bottom BTW.

Anybody have experience with both that could shed some light on advantages or disadvantages?

The wp10 is smaller than a 240. Its wave won't go over the top. U will enjoy the wp10 more as u can adjust the wave, or have a solid current. 240 is just a eater pusher....boring.....

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Water pusher

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I have the WP25 and love it. Great pump, super quiet and a ton of features. I have the Koralia 240, and it suffers from stoppage issues a lot, especially when restarting. Also, the pivot arm on the Koralia are pretty fragile. Go with the Jebao!

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.

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.

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

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.

the wp10 is small in size but not the flow it can create.....

I have a 50-55g main tank and I am planning for 2x wp10 to create my flow.... wp25 has a lot of flow potential...

i have 2 of the wp10s in one of my frag tanks that is 29 gal and it is about right. Can't see them being enough for a 50+ gal unless it is a softy tank. Just my opinion.