>>13687276Regular ones. They don't get too exciting until you get a massively overpopulated colony that survives purely from their ability to eat anything and live in horrible conditions.
When you blow into the tank and scare them there's so many you can hear them running, it's actually quite loud.
You can throw vegetables or fish food in there and they eat it really fast.
I don't really need special types for them, they're more like fish, they just sit around in their tank and do their own thing. I'll throw some plant seeds in there once in a while, The radish seeds are getting eaten before they can grow past a day-one state and they're slowly killing off the squash I threw in there, but it looks like one plant might survive.