Myka
Reefing since '93
but your corals look pale and starved for nutrients.
it looks to me like the turf algae is now removing all the nutrients and this is why you are getting such low p readings and 0 n readings.
i noticed you added some tiny hermits.. what about adding 40 astrea snails? and/or some algae grazing fish like a jewelled blenny or bristle toothed tang?
I think you need more physical algae control, Imo...
I have been in your exact situation and dropping nutrients or trying to, killed my corals. you need to get some aggressive grazers in there to remove that turf, physically and turn that turf into n and p for the corals..
This is exactly what I was going to reply to you. Tanks with all the nutrients tied up in algae are still tanks with nutrient-starved corals.
Your biggest issue right now is lack of clean up crew imo. I can't remember your tank size, it's not in your signature, but your pic looks like it might be 65-gallons?? I can't remember. Going by the pictures you posted of all the algae, for each 50 gallons, I'd be adding 6 Astraea, 3 Trochus, 3 Turbos, and 12 Scarlet Hermits.
Personally, I wouldn't be messing with ATS or anything like that. I've never dosed nitrate like Matt suggests, so I can't comment on that. It's obvious there is N and P in the tank, but the algae is taking it all up because your clean up crew sucks. The point of the clean up crew is to graze the algae down to a point where it is not visible, thus keeping the algae suspended in the water in the form of clean up crew poop. CUC poop has the N and P in it. This way you can control the N and P in the water column by balancing the amount of food going into the tank and having a CUC to match.
If you have a big enough clean up crew you can have HUGE N and P numbers and have ZERO algae in the tank. I maintain marine aquariums as my main source of income, and currently I have a tank that started at 750 ppm NO3 and 2.5 ppm PO4. The tank had hair algae on every surface, cyano covering half the hair algae, and dinoflagellates topping it all. It was a hot mess. The tank is much better now at 150 ppm NO3 and 1.5 ppm PO4, and even though these numbers are still horrendous, there are ZERO nuisance algae present in the tank due to a giant clean up crew that was added. I've been removing clean up crew now to back off as the nutrients are dropping to maintain the balance. You can let them die off, which achieves the same thing, but I prefer to remove them.
reefmutt said:the thing about sps that have been through a lot of instability is that some of them go into a long hibernation of sorts. They can stay like that for months and then either bloom or die.[...]Like i said, i am coming out of the other end of a long battle with impatience and imbalance in my system.. some corals have died along the way and some have begun to come back. New ones that have been added more recently, since the tank is stable, are growing right off the bat.
i think that at this point it may be misleading to you to be gauging your tank's health by your old frags.. i'm not saying add new ones yet but once you have a consistent reading for n and a constant low p reading, you should try a couple new frags- but only after a few months after consistent n and p..
Agreed. Absolutely.
I did a close inspection. Nothing that caught my attention. Coral is shocked all around.
However it's not a Acro, and the other Acro's are fine. So I doubt it AEFW.
It's never really done well (possibly too low in the tank). I think the Salinity shock did it in.
Ah, it was a digi then. It looked a lot like a valida that I had that was terribly infected with AEFW.
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