My local fish store is usually more than happy to give some to me, they are throwing them out anyway. If I need something smaller, I cut Styrofoam to put in my own box.
I have a 210 gallon that I am going to add 2 Koralia 4's to. My question is, should I purchase the wavemaker that goes to them, or would it be just fine to leave them on constant. I am looking for some advice now, because I noticed that there are two different powerheads depending on what you...