Goni extension

[allof fish]

So I’ve been dealing with this for going on several months now. I have specifically 2 gonis that when I first got them the first few months they were perfect, long extended tentacles and happy. Last few months the tentacles are much shorter. Still out, not retracted by any means but not extended as they use to be. I have a few theories. 1 my clownfish pair trying to host and the constant rubbing against and kicking up sand irritates it and causes this. 2 a decrease in trace elements. I use to do icp test but then had a mini tank crash, moved, upgraded tanks, so haven’t yet done them again, although water is new maybe they deplete specific elements faster than I replenish. Including manganese. Currently the clownfish aren’t hosting and rubbing as much as before but time will tell. Any theories? I’ll list old pic and new pics.
Parameters too incase anyone thinks my nutrients are to blame.
Alk 8
Calcium 430
Mag 1400
Nitrate 5
Phos .06

 

[BryanM]

I would try moving to a new location.

I have a rainbow goni that's been looking sad for a while, I just moved it yesterday, we'll see how it goes.

 

[Mr. Mojo Rising]

Its just a picture, but in the pic the flow looks pretty strong. If the flow is too hard the polyps will retract a little to protect itself. Try to fix the flow so the polyps are gently swaying from side to side. IMO

 

[allof fish]

Its just a picture, but in the pic the flow looks pretty strong. If the flow is too hard the polyps will retract a little to protect itself. Try to fix the flow so the polyps are gently swaying from side to side. IMO

They are in a little moderate to higher flow but I fine they generally like that. I moved them to a little bit less flow. In my old tank they were in moderate to higher flow and doing fine so we’ll see if they like this now

 

[kevgib67]

@steveschuerger has a lot of really nice and healthy maybe he’ll chime in with some ideas.

 

[helmsreef]

Could be a heavy metal issue as well but can't be sure without completing that ICP. My ORA goni will get hit with the highest flow in my tank and loves it, so they will take a beating and get insane extension.