02-05-2011, 02:07 PM
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Originally Posted by Calmwaters
I thought about that but the screws would stick through the plastic and I don't have any thing I could cut them off with. But then again my dad probably has something I could use at his house so thats one idea. But on the 55 how would I keep it from bending under the weight of the lights? Maybe a thin piece of wood in the middle?
You have a tank hood made for the tank with the fixture now, so the fixture is not full length; this is what my 33g has. On anything larger (more than 3 feet) I use a glass cover and a separate fixture. The glass cover sets are not expensive, they come for the tank size (length and width must be standard, width less critical as the construction allows overlap, but not for the length). There are plastic "rails" for the sides and across the middle, and the glass panes fit in these so they slide forward and backward, good for feeding. Then a new light fixture, they will sit on the tank frame and not on the glass. The glass will bow down just with its own weight, but turning over the centre rail piece every week during the water change will prevents this.