Is this Diatoms?

[EmilyB]

I had dinos among every other known algae a few weeks ago, and some major work, rock rinsing scrubbing, lights out, water changes, etc. and my tank looks amazing for almost a week now. I think we have it beat.

Introduced clean up crew again for sure, blue and red and orange hermits, astrea, turbo, margarita snails, a few lettuce nudis, urchin, a pile of detritus stars, etc..

[banditpowdercoat]

Past 2 days, 3 15g waterchanges 10% 15g is all I can make at one time. Removed almost all rock, freshwater scrub with toothbrush. Just pluged my ATO pump back in, and like a Boss I plugged it directly into wall, not the ATO, so 10% 15g of freshwater just pumped into tank. Sump started to overflow. Drain water, Add some salt to high flow. Sg went from 1.24 to 1.21 Temp plummeted and PH dropped on 2nd G of Kalk today trying to get PH up. It always runs low 8/high 7. At 8.15 now. Ive read many cures, each Dino seems to respond differently so I guess I'm hitting all angles. Ric's seem to be OK, shrunk a bit. Pretty much lost all my Zoa's. But finger leather still doing fine.

Oh also siphoned about 4 cups of bristle worms out of my overflow too.
New CUC on order from JL, along with Phos remover, parts for my RO/DI, and some other chemicals. They be here Thursday, Air freight

It's 11:53 I gota be up at 6 to go sledding in the mountians tomorrow. Lights are turned off but havent covered tank. Sump light off too