I recently just finished cycling my tank (55 gallon) and put 2 clown into my tank as well as 5 snails and a couple hermits . My CUC is coming from reefcleaners so they arent in there yet. That being said I just checked my water and all my levels were fine except phosphate. They were 0.2 which is obviously no good. I am using RO/DI water I just purchased the unit from BRS and it is maybe 3 months old so I highly doubt it is that. I have a reef octo in sump nwb110. My water change schedule has been 10 gallons every week which I think has been overkill but over kill i thought was better. Again I just finished cycling and I had cured the dry rock prior to this , I also had just added last week a piece of LR from trop isle to seed the tank. Is this spike normal because its a new tank ? I used a salifert test not a hanna. Should I immediately be ordering a GFO reactor ? Is it the new LR from trop isle ? Do I just need to wait for my CUC in there will that solve my problem ? any help is appreciated thank you.