Is this ich?

[KungFish]

The denticetopsis, especially the bigger ones (the ones in the video) eat very well. I've not seen the helogenes today… but the last time I saw it it did eat. The smaller denticetopsis eat what gets past the big ones.

[KungFish]

I've not seen the larger helogenes in 3 days… thinking it may be dead as well. Used to see it on a daily basis. None of the denticetopsis are sick. And they all appear to eat well. Looks like the ich is starting to give up.

[Marc van Arc]

That's a shame.
Nevertheless, you have been able to save the Denticetopsis, which would likely also have died if you had done nothing.
So enjoy that positive achievement.