Its very possible it is from heat. I would say since its on the top of the tank, its really not bearing the load say the sides or bottom are. I think it should be ok structurally. Do you have any fans for those lights?
Originally Posted by DeMartini
You may catch me online... lulu2sexy4u I don't go on it much though because I don't care to talk to most of the people from high school lol
so change it and only give it to reefers :facepalm:
I wouldnt really say those are "Cracks" but more stress fractures. Im unsure if that would comprimise the strength of the tank.
How did they get there or did you buy it like that?