Powerhead for 20g
I think I'm getting a fair few deadspots in my aquarium. I'm pretty much just relying on my in hood filter + sponge filter for circulation which is quite limited due to a rather large piece of driftwood in my tank. Thus, I'm thinking of getting a powerhead. Only range I have access to is Hagen Aquaclear. Which powerhead (model) would you guys recommend for my tank? (Dimensions - 51x35x54cm - 20" x 13.7" x 21.2")
Btw, this is for my goldfish tank.