Snails and Hermits Not Moving

[BlackIceClowns]

Hey guys.. So my snails and hermits seem to stop moving every now and then. I look and there are like no hermits to be seen and my snails are in their shells not moving. This happens for like a day or 2 and then it goes back to normal and then it'll happen again.. I don't get what's goin on, havent lost any or anything... but here is what I got going on...

100 gal DT with 55gal sump/ref, 4 T5HO (ATI and Giesemann) and 2 Orbit Marine Pro LED strips for supplemental lighting and for the ramp up and down.

SG: 1.026 with calibrated seawater refractometer, pH; 8.3, I use RO/DI water with 0 TDS..

Am: 0ppm, Nitrite: 0ppm, Nitrate: 0ppm, Phosphate: 0ppm

Ca: 450ppm, Mg: 1350ppm, Alk: 11 dKh

I use Reef Crystals and SeaChem buffer.

No nuisance algae, purple coralline aglae growing everywhere in DT...

Any ideas?

 

[SeaCucumberFan]

This happens to my sea cucumber all the time.

Day 1-3: Moving actively
Day 4: Staying in place
Day 5-6: Gone
Day 7: Back at the spot he started in.

Every single week! Although I do not know why. I guess this is a normal "rythm"they follow?

 

[drummerx13]

This happens to me as well. They will be moving one day and then inside their shell the next few days.

 

[BlackIceClowns]

yeah i dont get it... what could be causing it? I tested the water for copper even tho it's near impossible for it to be in there and it's 0, I put a poly filter in my sump, which i do every now and then anyway, and no color change and everything is good... parameters are perfect.. i dont get it

 

[SeaCucumberFan]

It's like they follow some sort of rythm. I think it is something "kind of supernatural"

 

[johnike]

I'd try dropping that alk.

 

[jlmawp]

My hermits tend to sit in one spot with their little antennae flopping in the current for hours on end. They also have their own specific spots that they like, and again, tend to stay there for extended periods of time. My guess is that it's a sign that they are happy and well-fed, since they aren't constantly looking for food.

Snails do the same. So much so that I've gotten concerned and moved them to make sure they're alive. They were, of course.