Bloody Mary Hillstream Loach
A small group of three or four Bloody Mary Hillstream Loaches could be kept in a tank as small as 20 gallons, and since we suggest keeping them in groups, you probably shouldn't keep in them in less water than this. You could keep a group of five to eight or nine in a 40-gallon breeder, which would be a very cool display with some ripping current through it. Utilize the kinds of décor you would see in an environment like the one all these fish share. Imagine fast current in a clear mountain stream. It would have large, rounded boulders, perhaps some very smooth clean driftwood, and a rounded pebble substrate. All these Loaches will be good with plants, but most plants are not going to love this type of display.