Acan mouth open?

[ekandler]

Never seen my Acans have their mouths open like this. Something is clearly ticking it off but don’t know what. Any ideas what’s going on or if it’ll recover?

 

[vetteguy53081]

Never seen my Acans have their mouths open like this. Something is clearly ticking it off but don’t know what. Any ideas what’s going on or if it’ll recover?

Likely hungry. Feed them some Mysis shrimp

 

[ekandler]

Will reefroids work? That’s all I have other than LRS reef frenzy that I Feed my fish but the shrimp in that is pretty big.

 

[Mr. Mojo Rising]

I feed mine bits of shaved reef frenzy, it will take it.

 

[BanjoBandito]

I feed mine almost daily w/ mysis shrimp. I think they like to eat.

 

[ekandler]

dang. I didn’t realize it was that much work. I usually just feed extra reef frenzy and let it float around in the water until corals get it ha

 

[jcolliii]

IME, acans will grow like weeds when spot fed at least 1x /week. And very slowly if not directly fed.

 

[mdb_talon]

To me that looks nothing like an acan feeding response. The polyps and tentacles are all retracted with the wide open mouths.

In my experience this is sometimes normal and i believe often related to expulsion of waste rather than desire for food. Also see it at times when doing water changes, dipping, overly bright light, etc....basically any stressor.

I would not be concerned if it is temporary. If it lasts more than a day or so i would be concerned. In any case though again i dont think this is a sign of hunger

 

[Aqua Man]

didn’t realize it was that much work. I usually just feed extra reef frenzy and let it float around in the water until corals get it ha

Send them to me then! Lol They do look stressed. Smaller colony behind looks the same. Polyps are retracted and not full looking.
Do you have nitrate/phosphate availability? Low/moderate flow?

I would not be concerned if it is temporary. If it lasts more than a day or so i would be concerned. In any case though again i dont think this is a sign of hunger

Agreed! Stressed, not hungry.

This is what a hungry and healthy Acan looks like.

 

[ekandler]

Send them to me then! Lol They do look stressed. Smaller colony behind looks the same. Polyps are retracted and not full looking.
Do you have nitrate/phosphate availability? Low/moderate flow?


Agreed! Stressed, not hungry.

This is what a hungry and healthy Acan looks like.

Yeah I have measurable nutrient levels, honestly higher than they should be. I’ve had an issue with fluctuating nutrients but I’m trying to work on it. These are charts from the previous year.