euphyllia coral help

WSM · Apr 20, 2020

hello,

thanks for the help in advance. I am having some issues with my hammers / frogs with skin receding up the stalk ( see pictures)
tank is 25 lagoon
AI Prime HD
skimmer
filter floss
chem pure blue
Small bag of GFO
mp10 on low setting (lagoon)

Stock list
YWG & Pistol pair
1 clown
1 ruby red dragonet
2 hermits
3 snails

levels are as follows
Nitrite - 0
PH 8.1-8.3
temp 76
ammonia 0
nitrate 0-5
Cal 300
alk 8.2
sal 1.025
ordered mag test didn't have one before

yesterday did water change. i understand cal is super low but i don't dose. i am concerned that the corals are sucking all the cal to quickly that bi weekly water changes are not cutting it.

would lower than normal cal cause the skin to recede? should i start dosing? if so what would you recommend ive read good things on BRS 2 part but just nervous about crashing tank if not done correctly.

corals still open up big & look great. sorry the pictures are not the best took with iphone acans zoa growing but not really getting growth out of euphyllia coral

dbl · Apr 21, 2020

If your regular water changes are not maintaining stable parameters then you may need to consider dosing.

WSM · Apr 21, 2020

Would low cal cause the skin to recede?

uhgster1 · Apr 21, 2020

I had an issue using chemipure whit my euphilia. Same symptoms. I quit using chemipure and they’ve been fine ever since. I don’t know why, but it’s the only thing I changed.

WSM · Apr 21, 2020

What did you switch to? Or did you just not use anything?

uhgster1 · Apr 22, 2020

WSM said:
What did you switch to? Or did you just not use anything?

I stopped using chemipure. I think it was working too good. I experimented putting it back and it happened every time. I tried this three times and finally quit. These are the colonies now. I started with one head of each. And I feed them too.

WSM · May 10, 2020

just wanted to give this a bump to see if anyone had any idea as to why the tissue is receding. used brs 2 part to get cal mag & alk to where they need to be but tissue is still receding. anyone have any idea? i did remove the chem blue didn't see much improvement. wall hammer starting to look bad please help.

test are as follows