Please help tank going down SOUTH FAST!

[SanguinesDream]

Originally Posted by lastlight

frag the sps well above the recession and remount. toss the bottom piece. gives the coral a chance at least.

lots of new carbon!

+2

[jason604]

I just noticed recession in a few other acros but they at the body of it near middle of the pieces what do I do? Also what is dinos? Is that another term for recession?

[Starry]

Dinos = dinoflagellates. kinda like cyno-bacteria. red slimy algae looking stuff.

As for your acro, the tissue recession is generally referred to as STN, or RTN, depending on the speed of the recession and is sometimes caused by bacteria as well as several other possible causes. Cutting the coral well above the affected area sometimes stops the spread of tissue loss, saving the coral.

I would also try and knock your phosphate down using GFO, 0.25 is pretty high, could be causing the browning of your other corals.

Best of luck!

[Spyd]

I agree with everyone. Run carbon and GFO to battle whatever is going on and reduce phosphates. .25 PO4 is quite high and would definitely cause some browning out of SPS. Judging by the pics, your SPS are RTN'ing. Chop off the good part of your SPS and mount them on frag plugs. That is the only way to potentially save them at this point. The second SPS get stressed, they can die off within hours. The die off will only cause more nutrients and can set off a chain reaction.

Water changes of at least 25% to even 50% would be good at this point to help reduce your nitrates, PO4, etc.

[sphelps]

All those symptoms are typically related to alkalinity, 7dkh is a bit low IME but if it's accurate and stable then not likely the issue but I'd try and confirm that number and bring up between 8 & 9 dkh. If you test kit doesn't give you a decimal it's not accurate enough.