Update day two:
Reef flux- no noticeable change since yesterday
Chemi clean- the mass seems slightly less dense and can observe some separation but no actual breakdown.
Azithromycin - it seems thinner than yesterday more indivual strands are visible
Peroxide- the water seems slightly more murky after adding yet another dose today. I must admit I've likey lost the hold over the salinity variable here by adding the 3 different doses of peroxide. So it's important to note I doubt the salinity is still at or just above 0.025 all the containers started at. Possibly a fair bit lower.
Control - it seems just a held together as day one. No signs of growth and zero signs of any degradation. Water is pretty clean compared to the tank so it's likely a strong inhibitor of growth.
The 210gallon tank. I didn't take a picture today as glass is dirty and would be challenging to show what I saw in person with a picture.
It's hard to say for certain. But most of this stuff just seems way thinner than it did yesterday. At the same time I noticed more strands of it clinging to the powerheads. Likey some came detached from rocks or substrate and was captured by the mp40s.
There is one rock structures that actually doesn't appear to have any of this stuff on it any longer. While another rock still has 2 of the denses baseball sized patches in the entire tank.
I see effects, though nothing to the point I'm confident this will be tbe treatment that actually works.
The effects observed thus far with Azithromycin exceed any of the effects from all previous in tank treatments so there is slim hope developing that it may work fingers crossed.