A little update on my 45 gallon. Put up the background today, blue poster board I picked up from the dollar store. At the moment the fish are not very happy with me because of the lack of hiding places but I'm heading to the pet store this weekend to pick up some more fakes and I'm sure they'll be back to normal. My blue mickey mouse platy is like a ninja now. She just kinda fades into the background and you can't really see her which I think she likes. She's a painfully shy fish. Until she sees the food container in my hand, then she's all about the begging.