Hi, I'm hoping you guy's can help me. I want to get a reptisun 10.0 UVB bulb for my girl and I am at a loss as to the size she needs. I have her in a 40g breeder tank and was thinking of getting the t8 repisun UVB 10.0 bulb. the issue is though with that I also am running into trouble finding the right fixture for it since I was looking into getting the 24-inch bulb to mount it in the tank under the lid. or would I be better off getting the t5 bulb that can sit on the wire lid? also, I have read people saying they got there fixture from Walmart but the stores near me don't carry that fixture for the t8 they are all LED with no removable bulbs. any help would be great thanks guys