[glampka]

BINGO!!!! You're calcium is high because of the Purple Up! Stop using it. It won't start coralline algae. You need to introduce it to your tank by way of LR or having it on crab/snail shells.
Tap water is no good. You're adding a ton of nutrients that will grow nuisance algae. Use RO/DI water (reverse osmosis/deionized).
CUC - clean up crew
Your lights will be good for mushrooms & leathers.