This is definitely my toplist of a scavenger. Its pretty, its greedy, and it keeps the tank very very clean.

We call them feifeng (飞凤）, actual name is Flagtail Prochidillus.

We normally buy them skinny and scrawny at the fish shop, and when it goes into the tank, it will start cleaning up the glass surfaces, the rubber air tubes. They even pick on the food that has been filtered and stuck on the sponge filter.

In no time, this fella will grow bulky and colours will develop nicely.

Normally you either keep one or you keep a few (like 5 or 6 of them) if not they get territorial. Tiny ones tends to be very weak and gets spooked easily, needs to be fed on algae wafers to a certain size, and they will become very very useful.