BTA closed - any guesses as to why?

[djryan2000]

I’ve had 4 BTAs in my tank for around a year now. Three of them picked spots in the first week and haven’t moved since. One of those three has been inexplicably closed for the last few days and I’m not quite sure why. I tried changing 15 gallons of water out of my 45g tank to see if it helps and he’s still closed.

 

[Poof No Eyebrows]

They do this. Leave it be and it will more then likely come back around.

 

[Uncle99]

He eat something….or someone?

 

[jeffchapok]

Nems are weird. Leave it alone and it'll probably open back up soon.