First, explanation. It's a couple of 10 gallon tanks with undertank heaters. I know I need to get a thermostat, that's in the plans for the immediate future. I'm also planning on running the wires out through the back so it's not so offensive to the eye.

I was wondering if the plastic covering was even really necessary since they're already pretty well enclosed in the shelves. I'm definitely open to any other observations and advice as well.