Still having Hammer/Frogspawn problems

[MikeyZO]

Ok, so after doing two water changes last week in hopes to dilute whatever it was that is causing my hammers and frogspawn to stress, slime, and retract up, I've come to a brick wall. Here are my water parameters as of tonight.

Temp - 77
Salinity - 34ppm
pH - 8.3
amonia - 0
nitrite - 0
nitrate - ~15
dKH - 7
PO4 - .05
Mg - 1200
Ca - 420
I noticed my alkalinity was a little low but thats new, it was around 9 two days ago. Not sure why it swung so much like that. Just added some buffer.

Anyway, not much has changed in my tank, these two corals have been fine for months and months. Its only been the past week or so that its going on. At first I thought it was something pestering it but I dont see anything during the day, nor at night when I look with a red light. I have even woke up several times during the past few night to look with no luck. I can't even say that its localized because even though my hammer colony and frogspawn are close to each other on one side of the tank, I have a hammer frag sitting low on the sand bed no where near the mother colony and frogspawn, and even that is stressed. Nothing has been introduced to the tank recently (except 2 small frags after all this started). None of my other LPS seem effected (acan, favia, chalice, candy canes). Is there something that is Euphyllia specific I should be looking for?

 

[reefman]

whats your ph right before the main lights r on? do u use carbon? if your alk drop from 9 to 7 in 2 days i would be concern.

 

[MikeyZO]

pH this morning before lights will go on is about 8.0. Alkalinity might have dropped due to the fact that I did a second water change during the week. Right before the water change it was 9, now it was 7, and I had used a premixed solution of different salt rather than using my own mix of TM Pro. So the one time salt change might have thrown my chem off a bit. Thats why I wasnt overly worried about it. I didnt have the water ready for a new batch of saltwater so I used the petco NSW that Cheif uses.

 

[bad coffee]

Do you see any brown mucous on the heads? I lost all my euphillias to brown jelly disease.

B

 

[stoneriff]

I had 2 Torches die on me in the same week. All parameters are fine. All other corals are fine. Could be a small spike in your temp. My temp usually stays between 77-81 depending on how hot it gets. Keep an eye on your temperature.

 

[MikeyZO]

no brown mucous on the heads, just some sliming every once in a blue moon from the mouth. The temp fluctuates a little, but no more than a degree or two. Never goes below 76 or above 79 that I've seen, I keep the AC on in the room.

Here is a few pics of what it looks like.

 

[MikeyZO]

As you can see from the top pic, only half the colony is really closed up, the other half is open but not as much as it used to be. The bottom pic shows my frogspawn all closed up. It used to be huge, almost looking like an anemone.