12-07-2004, 06:21 AM
Join Date: Apr 2004
Welcome to the forum! Most vendors will tell you that a cover is needed so as not to void any warranties and such. But, in practice, many planted tank folks run without a glass cover. It will give you some condensation issues within the reflectors, but they're not that bad to keep clean. I've been running without a glass cover ever since I stepped up to a 96w that heated the glass to much that raised my tank water that caused some deaths... You get the picture.