coral keeper
Active Member
NEVER EVER EVER put a MH light on top of glass. I got a new MH light and wanted to try it out, so I got a large piece of glass that is a little less than half an inch thick(the glass is tempered) and put it over my 8 gallon biocube, then I put the MH light on top of the glass and I turned it on. An hour later the glass shattered. A few pieces of glass fell in the tank which isn't bad. But THANK GOD the MH light didn't fall into the tank! The funny thing is that there is a very large piece of glass that is exactly shaped of the eastern US. Here is half of the glass.