After having problems with a penguin biowheel 330 (my fault) I switched over to a older biowheel 160. Is this going to be enough filtration for a while? I have a 30 gallon, planted tank, with 5 Cherry Barbs, 2 Koi Angelfish, and 2 Siamease Algae Eaters. Also, my friend thinks I should add a powerhead, just to create more current in the tank. Are there and pros or cons to doing this? If it is worthwhile, what do people recommend?Thanks!
