Added a 3rd AI Blade and Acro Polyps Receded

[ElementSquaredLLC]

Hi All,

I added a 3rd AI Blade light a couple days ago. I had 2 Grows and added a Glow. I noticed that acro polyp extension has receded since then. That being said, it was never great to begin with. Seems like the acros that I add to the tank always start out with good extension and then gradually lose it over a few days/weeks. Regardless, the last couple days have been worse than normal. Tank parameters are below. Any feedback would be appreciated. And also, could the addiotional light be the issue with the polyps receding and if so, what should I do about it now that it has been a few days.


- Gross water volume of complete system (incl. sump etc.) -250 gallons
- Carbon reactor with KZ carbon.
- UV- 40 watt system
- Pumps- 2 Orbit 4 wavemakers, 2 Nero 7 pumps.
- Reefer DC 600 Skimmer
- NO3- 5ish. PO4- .05ish
- Ca- 410. Alk- 8.2. Mg 1500
- Red Sea Reef Mat Filter
- 3 AI Blades. 2 Grow, 1 Glow
- 10 torches. 5 Hammers, various zoas and duncans. 15ish various acros. Random monit's, stylos, acans, etc....
- Tank is 4 months old
- Dosing0 Ca, Alk, AB+, Microbacter7, Korellen Zucht trace element and coral supplements (8 of them)

 

[JTP424]

From a quick glance I'd say your tank isn't super mature at 4 months old...
That's a LOT of bio load in a fairly new tank.
Acros need stable conditions ime.

 

[Oldreefer44]

Agree with JTP. Also questioning all the additives. Is there a specific reason for each?
A third Blade on that size tank should not be an issue in fact for sps you still may need more. Would be good to get PAR readings and maybe an ICP to see where minor traces are at. With all those additives there could be several issues there. Lastly, be patient. Nothing good happens fast in this hobby and 4 months would be very fast.

 

[exnisstech]

I agree with above. That's a lot of coral in a 4mo old tank unless you have some experience under your belt. I started an acro tank 2 years ago and corals did very poorly for the first year and I only had acro frags.