ummmmmmmm, I haven't changed my bulbs yet. The tank was installed last year Feb. Way past due! Trying to figuer what bulbs I want to go with.
Followed by testing!! Only test if I see something wrong.
I'm convinced in a few more weeks (and I know there are people here that can attest to this) I'll be able to remove the glass from my tank and just use the coralline to hold the water in..... cuz I never scrape it.