Acros Upset

[Aaron-A2]

So since yesterday, all of my acros except my Walt Disney and a milli have had no polyp extension. I did an entire param check.

Alk: 8.4
Calc: 455
Mag: 1400
Ammonia: 0
Nitrite 0
Nitrate: 1
Phosphates: 0
Salinity: 1.026
Temp: 78

I dose 2part using my GHL doser.

I've had no issues with my acros since... I started my tank 10 months ago. The most recent change was dosing diy kz snow (sodium bicarbonate + rodi water). I noticed after dosing, my alk would drop by .4, I would then manually increase with my 2 part. I've since stopped dosing the snow.

Between yesterday and today, alk is seemingly stable. Is it possible that over 4 days having my alk swing from 8.4 to 8.0 (4) times would cause this?

Lights were adjusted last week. Added 5% to my radions bringing them to 70% intensity (par still lower than I'd like). I've been raising my led brightness by 5% every 2 weeks.

Thoughts?

 

[saltyfilmfolks]

Carbonate or bicarbonate?

https://www.reef2reef.com/threads/kz-coral-snow-chalk-caco3.242288/

 

[Aaron-A2]

Carbonate. I picked up food grade carbonate per this thread https://www.reef2reef.com/threads/diy-kz-coral-snow-with-97-purity.211722/#post-2424204

This is what I used specifically: 1 lb Food Grade 97+% Calcium Carbonate from Ground Limestone https://www.amazon.com/dp/B00959XKGI/ref=cm_sw_r_cp_apa_QoYIBbVJ0DKWX

 

[saltyfilmfolks]

Odd.
Thanks for the link.
Let’s get some of those friends to take a look.
@Toomanyfish
#reefsquad

 

[Crabs McJones]

Possibly from the swing

 

[Dr. Reef Verified Sponsor]

Could be the swing or the carbonate that you used it says it's 97% pure I wonder what the 3% fillers are all about

 

[CNDReef]

Maybe from the swing , could also have binded up your phosphate and removed it completely from your system. If your tank was zero before the kz, it’s definitely zero after since phosphate binds to it and it’s removed through skimming and any mechanical filtration you used. ive also heard if you increase your lighting you should also increase nutrient levels so the flesh can keep up with the calcification.

 

[CNDReef]

Cause and effect is very subjective to each tank which doesn’t help much. I wouldn’t change anything for a week to see how those acros fair with stability.

 

[jsker]

This could be an issue

 

[29bonsaireef]

Sometimes a multitude of things can add up to the "perfect storm". I would cut back lights to what they were previously. You're definitely going to want some nutrients present when increasing lighting, especially with LED. They seem to penetrate the coral and do more harm when nutrients go too low. JMO