Attaching Background To Tank

[jarthel]

I have a plastic background and I used spray oil to attach it to the tank. BUT there are air bubbles that doesn't want to disappear. Should I put more oil?

thank you

 

[waterdrop]

You could try using a straight-edged object, perhaps a foot-long ruler, to smooth the bubbles out to the edge. There are a number of different substances people use and there's another thread about this currently, right here in the beginners section!

~~waterdrop~~