Hey guys. I just set up another (small) tank in my apartment. Everything is all good in the tank but I think the water could be to strong.

Its a filter suited for [probably] a 40 gallon tank and the tank is only 15 or 20 gallons.

When the water level is a little low (like blow the trim) it literally pushed the sand around. Also it seems to push the little corries I have in the tank around.

The only other a fish in the tank is a Bolivian Ram, who isn't really going "high" in the tank. The tank isn't that big but its like he is laying down on the floor, he either hides (normal) or swims around with the corries. He is acting fine, I just feel like the water flow is to high and he can't swim to the top. He waits for the flakes to come to him.