Metal halides and acrylic

[LoneRegister]

I have a 200 Gallon acrylic 3/4" thick tank.

The top is covered by a 3/4" top - with openings with 3/4" covers.

I have Metal Halide 400W radiums above the tank. The cover sections of the tank get pretty hot. Does anyone have information on how hot is too hot?

Thanks
Kevin

 

[jjk_reef00]

I've seen people recommend to put extra acrylic over the top (not guled). That way if the extra piece is damaged it doesn't compromise tank integrity.