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Are there dosing standards yet? I have been vacuuming infected sand and replacing with new sand. I do small sections each week. It's a fix but I'm not sure it's a permanent fix as I see it still pop up in areas I laid new sand. It's not much but still grows.Do you have a cyanobacteria outbreak that you can't beat down?
Thank you for following as this all comes together!

Can we have pictures? Before dosing and during?I'm going all in. Started a 3-day lights out in conjunction with dosing twice a day.
Today is the last day!Day 14 H2O2
I'm still having clean clear water no livestock showing signs of discomfort still no regrowth on cyano or dinos, GHA still dieing off and clearing out.
Water quality
Ca 445
Mg 1470
Dkh 7.8
Po4 .2
No3 .1
Ammonia not detected
S.G. 1.025
P.h. 8.37![]()

I have a similar situation. Cyano is growing and I have been dosing 2x a day at a little over 1/10. Have been dosing for the last 2 weeks possibly with a 4 day break (vacation) in the middle. Would also send a sample to Twilliard if he had openings.I must have some "super" cyano. Here are some pics 7 days apart. My cyano is actually growing although I am feeding twice a day. I also probably killed my skunk shrimp this morning when I dosed.
Do you need any more test tanks twilliard?
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I'm not sure about thisI have a bottle of Kent Marine Lugol's Solution can that be used?
Thanks,
Jim
I set up my Schotling Oxydator last week when I had an outbreak of dinos in my new cycled frag tank and It's 90% clear now.
I think I had about 200ml of 6% h2o2 in there and after about a week it's only dispensed about 1/3 of the the total volume. (25 gal system)
I've always dosed h202 into my Zoa frag tanks after doing any major maintenance or if any slime algae ever appeared but this is the first time I've ever dosed it 24/7 automatically, and so far I'm very happy with what's happening.
Skimmer production had increased dramatically, shy fish are now seen more frequently and so far the Zoas seem to be very happy.
When dosing by hand I would see a defence/stress reaction and all my corals would close up, especially the Zoas, and they would not open for half hour, sometimes longer. Now I'm not hand dosing this never happens.


