Frogspawn Died Abruptly

[tonytran]

Im baffled. I have 4 heads of frogspawn and yesterday two died. I thought the other two would be ok since they looked alive. Today, the other two also died. I cant figure out why.

Here are my tank parameters:

nitrate 0
ammonia 0
calcium 400
alkalinity 10.8
temp 80-82

My fish:

Mural Goby
Clarkii Clown
Yellow Tang

Coral:
Acropora
Montis
hammer coral
zoas
giant carpet
green anemone
candy cane
crocea clam
shrooms
xenia
orange ricordia

I just recently added the ricordia, xenia, and some chaeto in my sump and before that all the sps two weeks prior.

I cant seem to pinpoint the problem of why the frospawn died and all the other corals seem fine. I dont feed any of my coral but i dont think that is the reason. Its just wierd because one day they were fine and then all of a sudden they were not. Can anyone think of a reason why this may have happened? I dont want to kill of my whole tank because i dont know what the problem is.

 

[sir_dudeguy]

This is a soft coral section... Frogspawns arent softies, they're stony corals (LPS, or Large Polyped Stony), so for future reference, this one sould've gone in the LPS forum

Anywho

Whats your SG? you didnt list that. How bout your pH?

 

[tonytran]

<a href=showthread.php?s=&postid=10533116#post10533116 target=_blank>Originally posted</a> by sir_dudeguy
This is a soft coral section... Frogspawns arent softies, they're stony corals (LPS, or Large Polyped Stony), so for future reference, this one sould've gone in the LPS forum

Anywho

Whats your SG? you didnt list that. How bout your pH?

SG = 1.024
Ph = 8.2

Stony Coral? OK maybe i am missing something in my water because now my acro have started to turn white and another one of my corals that looks like acro except its kind of hairy has turned white also. Does this mean they are dead? I only dose calc and alk builder and nothing else.

 

[sir_dudeguy]

If they're completely white w/no more tissue on them, yes they're dead.

Also, when you dose alk and calc, do you test for them to make sure you even need to dose them? Most people DONT need to dose a thing. Keep up w/regular water changes and there's not usually any reason to dose.

 

[tonytran]

Yes, with my current dosing regimine, my calc and alk levels have been maintaining at 400 and 10.8 respectively. When i dont dose, i will see a drop in both levels. I also do 10% water changes every 2 weeks. Not sure where to look next...