I removed the top on my 14 gal cube and put an AI Prime over it with great success. I have zero heat tissues and actually have a heater running to keep the temp up. I dont have experience with any other LED lights though. My brother in law used Steves on his 2 and kept the lids and loves them.
Removing the lid is what's going to help with the heat escaping that's why you wouldn't have any heating issues. Biocubes with lids have been known to have heating issues sometimes.



