20 Gallon Tank Water circulation help

[Pfrozen]

hello

my newly setup 20g has 2x 40g sponge filters on a fluval Q1 designed for a 60 ish gallon tank. im still having some problems with water circulation though. im going to be tearing down my other tank, a 10g, in favour of setting up a 5g walstad. i am going to put the sponge from the 10g into the walstad and use the (WELL cycled) 10g HOB for the 20g.

do you think adding the 10g HOB will add enough water circulation to my tank?

 

[Sauceboat]

It should be fine but if you find yourself still wanting more circulation you can find a small powerhead for $5-10 on ebay and put it on the other end of the tank.