I have 4 ballasts that came with the tank (purchased through offer up) as well as the stock lid.
I thought of doing plexiglass in 2 rectangles and cutting a hole that allowed 2 of the ballasts to sit on top of so that nothing was between the ballasts and the crabbies. I think the problem may be that over time, the warmth of the lights will warp the plexiglas (happened to my small fish tanks when a light was suspended 6 inches over the square piece with no holes). Because of that, I'm thinking of a replacement lid from either Aqueon or TopFin.
The problem with the replacement glass lid is that the lights would have to go completely in the back and I would have to remove all of the plastic that is in the back area where filters/ cords/ tubes would go for a fish tank. The light ballasts are not air tight so that would be a source of humidity leak.
My other option is to use the glass replacement lid and attach lights inside the tank. Can I use T8 grow lights then since they are there only thing I already have that are light enough to maybe stay up with double sided tape? The problem with mounting inside is that my height is dramatically reduced which would lead to escapes.
Any ideas anytime on these two questions/ issues?
The attached picture is my crabitat as of this morning. I am working on adding another inch of substrate per day for approximately the next 2 days. I have slightly less than 6" in some areas because of restructuring by the crabs. It is a 250g.
![Image](http://uploads.tapatalk-cdn.com/20200405/2d2f16b164897478b2b2d7c40eeff891.jpg)
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