[Spiny]

So I'm trying SPSs. Right now I have the 4x39w t5ho current usa fixture over my 28g 15 inches deep. I got the cheap stock bulbs 2x10k 2xactinics. Any idea if I'll be able to keep (lighting wise) these sps or do I need to up my lighting;

neon green birdnest
blue polyp birdnest
acro convexa
purple acro

Thanks