mg1197
Member
I am setting up a used 90 gal reef. The tank is an acrylic Nova 90 gal. The tank currently has regular 48" tubes under the canopy , but I am thinking about putting VHO tubes in (the seller gave me new ballasts for VHO). My concern is that these may melt/warp the top of the acrylic tank - will this be a problem? The lights tubes would be about 4 inches above the top of the tank - also the top has a fan at either end.