QUOTE (SeeDemTails @ Apr 27 2009, 10:00 PM)

Yep, RTN. Basically only alk could cause it. Everything else in you tank is to healthy for it to be liek NO3 or NH3/4.
I would guess your alk is like 2.5 or less. It is tough to get it up, but your gonna have to.
If it was the alk then the monti would not have been the first to go, the acros would be. That monti is a lot more hardy than any of that other SPS is I sent her. Stuff just happens sometimes.
No offense SDT, but I dont think your right on this one.
QUOTE (SeeDemTails @ Apr 27 2009, 11:14 PM)

Watch the others closely.....Acros are more hardy than montis, and less quick to show stress. But they still need high alk and ca to thrive. Your lights are fine, just get the ca/alk in blace and your golden.
You really think that a acro is more hardy than montis?

IME thats just not true.
QUOTE (Lalani @ Apr 27 2009, 11:31 PM)

See, this is why I've stayed away from SPS... picky stuff.

I'll have to order from some place to get salifert. Guess I'll need tests for alk, calcium, and magnesium?
Its 4 little frags. Keep up your water changes and you should be ok for a while. They wont use that much. Its not like you have huge colonies.
QUOTE (SeeDemTails @ Apr 27 2009, 09:25 PM)

I like B-ionic, it is a great suppliment. My tank uses 40ml a day! I bet your tank need about 5-10ml a day.
Dont dose anything yet, its a new tank. Just keep up your water changes.