Can i use black spray paint on my new aquarium back glass?? It's brand new and empty. But i will be starting my cycle after it dry's will it be ok. I will probably paint the outside?!
Yes you have to paint the outside. I have done 4 tanks with blue and never had any problems with it coming off. I use 600 grit wet /dry emery and wet it and then just lightly scuff the outside glass, not sure how many coats to tell you but alot to make sure it covers well. I wouldn't touch it for about 3-4 day because it seems it takes that long to really stick and harden. I bought my spray paint a Lowe's and I think it was just enamel. Don't forget to cover the top because of overspray. Good luck and don't rush it.
On BRAND new tanks, I don't recommend painting the back. Either leave it (it will eventually get a thick film of algae, and you wouldn't know the difference), or put a paper background on the back. Painting the tank voids the warranty. :happyfish