New tank Cyanobacteria

[mhartley276]

Need advice on what to do, if anything. Is this just “new tank uglies?” Been struggling with Cyanobacteria (mostly green but there is some red also in certain places) for a few months now. At one point I also had dinoflagellates but I think I’ve kicked that problem. LFS says it’s over feeding and flow issue but I’ve jacked up the flow and figured out how to feed correctly and I’m still struggling. I have 2 MP40s set to reef crest 40% during the day and lagoon 30% at night

75g tank No sump
Started with live rock (80lbs of it)
Crushed coral sand substrate


Stock:
2 clowns
2 ornate leopard wrasses
1 regal angel
1 blue cleaner wrasse
1 yellow watchman goby
1 maxima clam
2 rose bubble tip anemones ( was 1, it split)
5 peppermint shrimp
Probably about 15 hermits


blastomussa and hammer coral frags
Green polyp leather coral
Encrusting gargonia
Pulsing Xenia

water parameters:
Alk between 10-12 was 12.5 last night
Calcium 375
Mag 1200
Phosphate 0.25 (API test, waiting for salifert one to come in mail)
Nitrates 5
Salinity 1.025

 

[mhartley276]

Not sure how they determined you need 50ml dose. Basically you do a water change and hopefully after that your alk is close to where you want it. Then take readings at 24 hours and 48 hours later. See how much your alk dropped each day. Then you can determine what your daily bionic dose would be to raise it back up to your preferred alk number. Just match the same dose amount with the calcium to but don't add them together at the same time. Wait an hour between. Once you get better parameters the cyano will start going away. It will take a few months but it is better then dumping chemicals in. Check out PNS probio to. It's a natural bacteria supplement and I have used it for a month and it is really helping balance my tank and clearing it out.

Thank you!