Acros closed and zoa melted

[techhnyne]

I have a few digi and some other acros that are closed up for like 2 weeks and a zoa closed that started melting but all my other zoas hammers montis and stylophoras all throving. Anyone might have an idea?

10g AIO tank running triton method
Here are my parameters
No3 4.5
Po4 .03

only thing i can think of is phosphate too high? But i dont think that can be it

 

[Timfish]

At .03 mg/l your PO4 is borderline too low. Just FYI, individual coral species will respond very differently to the same stressor at the genotype leve so it shouldn't be surprising to see some corals doing poorly and others doing well. If you're not doing water changes start doing 20%-30% monthly. What else are you doing maintenance wise?

 

[Reefing102]

Also may have missed it, but what’s your salinity?

 

[techhnyne]

At .03 mg/l your PO4 is borderline too low. Just FYI, individual coral species will respond very differently to the same stressor at the genotype leve so it shouldn't be surprising to see some corals doing poorly and others doing well. If you're not doing water changes start doing 20%-30% monthly. What else are you doing maintenance wise?

I use triton so not really doing waterchanges though I recently did one and didnt help.
I have a skimmer and Chaeto in the back of my AIO.
basically not much maintenance unless I decide a WC. I also have filterfloss before my Chaeto chamber

 

[techhnyne]

Also may have missed it, but what’s your salinity?

1.025

 

[Reefing102]

Did you change your lighting schedule?

 

[techhnyne]

Did you change your lighting schedule?

I did not change anything at all. Though i stopped dosing calcium and some reason my calcium has not dropped in 4 days since i stopped

 

[Lavey29]

How often do you check all numbers via triton.

 

[techhnyne]

How often do you check all numbers via triton.4x a day and i ran 12 tests a day for past few days and everything seems consistant

 

[Lavey29]

I would raise nitrates to 10 and phosphate slightly maybe .06. I would verify your par for your corals. Run carbon in case something got into the water. Do 20% water change. Do you ever do a full analysis showing all parameters including trace?