New frag rack very slimy should I dose bacteria?

[chriss1992]

So I made a frag rack out of light diffuser and ever since putting it in my tank I've had huge slimy strands all over it. Even blasting them off they come back. It's almost like the rack is cycling somehow and it's ticking off all the surrounding coral. My water is testing fine nothing is out of whack but if I dosed xlm bacteria which I have from my cycle a while back would that possibly kill off these strands?

 

[W1ngz]

I never found a solution to this. You can either keep blasting it until the rack gets some coralline coverage, or give up on the light diffuser and get black egg crate that is marketed for DIY frag racks.