于 2004-02-25 21:39 What I mean is use some glass to seperate a corner and put bio-ball inside of it. And about the water pump, can I use a big pump, like 5000L/H, or even more like 7000L/H --- 8000L/H? Will it have a better result? Because I am thinking to have 4 to 6 water outlet. My sump size are 22" x 10" x 18". Thank you very much, I am a very very beginner.