I have a biocube 29 that's been running for 2+ years I have macroalgae in the fuge under a light a biocube protein skimmer and bio balls plus the regular stock filter. I keep my ph 8.2-8.4 calcium runs 380mg:L lights are on 8 hours a day and it's stocked with tons of coral. I have hermits and 2 emerald crabs algae ranges from green hair algae to slimy green algae with air bubbles in it to the horrid bubble algae I do a weekly water change of 5 gallons salinity stays around .025. I started adding start smart which cycles the tank over night, I add this a day before the water change hoping to rid of the phosphate I Also add phosbuster to kill phosphate. STILL no luck phosphate levels run about .5-1.0 the only thing I don't have is a phosban reactor. What can I do to solve this problem my tank use to run perfect parameters. Oh forgot a few details I use only ro/di water for water changes and topping off. Someone please find me a solution lol this is like watching my baby die