I left Patience behind and now it's getting even :mad:

[Delphinus]

There are two reasons its mouth may gape open.

One, it's feeding ... Two, it's pooping ... Three (Ok so apparently I can't count) it may be trying to respirate (sort of an equivalent to "panting for breath"). In the last case if you have low O2 levels in the tank (usually from not enough flow or not enough surface agitation) then you might see this sort of thing.

BUT if it's taking food and keeping it down, then it's probably just going through an adjustment phase. In my experience anemones can takes weeks to months to really fully truly settle in. If you just got it, then that's probably what's going on. Also BTW, feeding it once or twice per week is usually adequate.

Hope this helps.