Yeah, generally speaking, feather dusters tend to prefer low to moderate flow - they won't typically do well in high flow.Hey I wanted to come back to this thread and ask a few general questions about feather duster care. What flow level is optimal for feather dusters? @ISpeakForTheSeas @PotatoPig @WalkerLovesTheOcean Also wondering if they will get any bigger?
Specific optimal levels will vary from one species to another and are poorly studied at this point (I've really only seen it studied well with a couple of barnacles and, IIRC, to a lesser degree, a few sponges).
The feather dusters you have probably won't get larger, but the size is dependent on the species, food they get, and their environment (water quality, temperature, possibly even lighting, etc.).