Painting tanks

[Smurf]

I have some tanks that are home made but they are painted with gloss paint.

They are for leopard geckos and I have tested them b4 I put anything in them and they let off fumes when the get warm.

Is this something that will stop or will I have to paint over the gloss with something else?

I have heard about using the liquid plastic that is used for melamine and wondered if this could over the gloss and would this stop the fumes also how long would I have to leave it to dry b4 putting anything in them?

I certainly dont want to hurt my animals so if anyone could help would be much appreciated.