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Interesting.Your phoshates are too low for your nitrate level.
Bump it up a bit to 1ppm or bring your nitrate down below 1ppm with .04ppm phosphates.
My zoas were struggling for a while until i realized my nutrient imbalance. Melting, dying and suffering from zoa pox. Furan 2 dips or iodine didnt work. Only when i started to raise my phosphate, immediately i noticed the zoa pox healing and the zoas slowly stop melting away into brown messy goops. Most of my other coral is doing ok but zoas really showed the worst symptoms. This was directly after changing my natural nutrient balance from 0ppm nitrate, .02ppm phosphate to 50ppm nitrate and .04ppm phosphate.
Even after bringing it down to 10ppm nitrate my phosphates were still apparently too low.
Ive been dosing small amounts of monopotassium phosphate concentrate to the pre determined amount it should be at for .1ppm in my tank, and my low range test kit barely reads half of that. It means that either my rocks are binding it faster than im dosing or my corals are depleating it out of the water fast due to the high nitrate. Since my corals seem to finally be on their way to recovery im leaning towards it being lack of p04.Interesting.
My PO4 is usually pretty high though, so I'd be surprised if that would be the case. Could too much phosphates cause the stretching as well?Mine are under two hydra 52s at 3" below water surface. Guessing 350+ par based on past readings.
Still stretching....dont think its from lighting. Theyve been doing that since i had them under 2x hydra 26s.
Po4 deficient is my guess. They used to look like this under hydra 26s and no nitrate with slightly elevated p04.
Something like Triton? I haven't, might be worth doing it though.Have you sent your owater to one of those ipc testing places. It will tell you the values of many things including heavey metals. The test would be a good clue either way. I have two of the AI 26HD. Run carbon one every 4 to 6 weeks ... don't give up .... you will figure it out.
Ah, sorry, in that case I meant GAC.GAC and dosing carbon are two very different things and serve two different purposes. I float GAC almost 24/7. Taking it out only periodically.
I spray a good bit of reef roids on them every week. Though I do notice they barely react to it, compared to some hitchhiking palythoas and the 2 frags I picked up yesterday.Do you feed your zoas? Although they are photocynthetc I tofeed them along with all the rest of my corals. Reef roids sprayed right on them from a feeder tube with current off. Ro you have flow in tank?
Just removed the plugs from the liverock for a closer look. Unfortunately I don't have a magnifying glass so couldn't really see anything.