Best one I've found recently was the top article on DDG search for "peacock mantis shrimp cleanup crew".
The Peacock Mantis Shrimp is a valued clean‑up‑crew addition sold in‑store here in Columbus, Ohio. It acts as a scavenger and algae picker, keeps substrate clean, helping reduce maintenance and improve water quality. Stock 1–2 per 5 gal in a balanced reef or fish‑only system for best results. Difficulty: Easy. Offer varied empty shells. Drip‑acclimate and maintain stable salinity for long‑term health.
There are so many problems with this but I'll start with the one that made me search for a cleanup crew for a mantis shrimp:
- they are aggressive and deadly to just about anything other than some damselfish
- minimun tank size is 20 gallons, putting one in a 5 gallon would be terrible for everyone and stoclong 1-2 per 5 gallons would be a bloodbath
- they are not scavengers or detrivores and do not eat algae
- they do not clean the substrate other than to kick it all over the place when making a burrow
Anyone else want 'googled up' to replace enshitified? Maybe a comanion term.