cuttlefish
New Member
I have this problem i put flake in to start it off for the amonia that is. live rock rock lava rock live sand led lighting tthe temp is as it should be the ph is about 7.5 the phospates are as they should be but the nitrates are sky high the amonoia level is back at zero now although it has been high it has been about a two week period so far and there is this yellow algae that is now turning to mustard in places and over the rock how can i get the nitrate levels down i do not want to add anything into my tank until i can control this any help will be much appreciated.