I just put together this 20 gallon nano. Instead of buying the kit I thought it would be better to be able to adjust anything individually. My only problem right now seems to be the splashing going on from the top of the water. The minerals in the tank deposit on the top and bottom of my coralife fixture. It does have a splash guard and the light does not run hot at all. However, the deposits hinder the light and I find myself wiping it clean daily. The filter side splashes more than the other, but there is still splashing happening beneath the entire light. I was told it would be bad to add a lid as it would block light. Is my best option to keep cleaning the light with a micro cloth, or just buy a lid to clean? I'm trying to take the cheapest option out without having to change my filter if possible. I really like the bio-wheel concept.
http://img641.imageshack.us/i/20490624098orig.jpg/
http://img641.imageshack.us/i/20490624098orig.jpg/