Leptoseris coral help

[Fishingandreefing]

Had this coral for about few months and recently started receding from the bottom.

I am currently fighting high phosphate. Since about 6 weeks ago, I have dropped it from .90 to now .18. Recently lost a small colony of frogskin acro due to STN or RTN.

alk around 8.5
Cal around 465
Nitrate 0
P04 around .18
temp around 76

dosing acropower and kalk vis ato.

any idea or just my tank is not stable yet. It’s a 120g with a 30g refugium with a small amount of grape culerpas added recently.

 

[AZMSGT]

You didn’t say how old the tank is. Your temp seems a little low to me.

 

[Hemmdog]

You need nitrate. What lights are you running?

 

[Fishingandreefing]

You need nitrate. What lights are you running?

Radions

 

[Fishingandreefing]

You didn’t say how old the tank is. Your temp seems a little low to me.

About 2 years. I got a lot of euphyllias so I try to keep it on the lower end

 

[Uncle99]

Nitrate s/b 2-5ppm
Phosphate is getting to the higher end of the range, this can slow growth.
Phosphate of 0.03-.1 is a good range when nitrates in the 2-5 range.