Chaeto will do fine, I have been housing them in opae tank for many years, sometimes when you port them to new tank/location they will disintegrate/breakdown into smaller lump but they will regrowth.
Refer to my picture, this tank was setup on 25 March 2020 with around 15 opae shrimp, today is 23 May 2020, almost 2 month passed, in between I added some rock and changed the layout, now opae already start to reproduce with few berried shrimp spotted, the chaeto algae is still growing strong, it didnt growth much cos I hardly on the light, only once awhile maybe like 2 to 3 time per week for 1 or 2 hrs or less.

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