there is a stock round sponge that most pet stores sell. you just need to have a "screen" that the spounge would fit over. you can use anything that fit over the intake of the powerhead and that allowes for plenty of flow. got any old powerheads?
_________
29 gal/ 10gal refugium with more things then I have space to list.
with a 7gal sea horse tank slowly in the works |