My setup is about 35 days or so old, it's going through a diatom algae breakout and is turning from brown to green, and was wondering if my tank is cycled now or how decent looking are my test results.
Specific Gravity> 1.025
Phosphate> 0.5 mg
Calcium concentration> 360-380 mg
Carbonate hardness> 196.9-214.8 ppm KH
I have a 20 gallon sump with filter sock and skimmer, 800gph fow rate. I keep the temp at around 78-80F and have a T5HO light. Can I start adding some hardy soft corals at this time? Some of the live rock I originally bought had purple mushrooms on it and they have been survivng the whe whole time. I think they are considered a hardy soft coral, so is it safe to start to add some other hardy soft corals? Or any recommendations for a hardy coral to put in?