So I've got a 20 gallon (high) paludarium.
I inherited it from a friend, and it had been used with archers and, I believe, some sort of gecko or anole.
When I got it, it was just a piece of acrylic bent to fit on the back wall of the tank. I filled it up with potting soil and planted it with jade, mondo grass and "polka dot plant" (hypoestes phyllostachya). The construction of the tank includes the acrylic piece, which has a piece of piping running through it. The piping fits on a small pump, which can hold a small sac of carbon. The pump moves the water to the other end of the "island" acrylic piece, where it falls down a slate waterfall. The waterfall has java moss on it, growing 80% submerged. This waterfall is a bridge up to the planted island area. The water portion of the tank holds about 8 gallons. In it I have one betta, and some feeder guppies. For aquatic plants I have bamboo growing with the stalk in the sand underwater, and the leaves in the air, and java moss, and some driftwood.
I have a small hydor mini heater and for lighting I use a twin bulb flourescent fixture, with plant bulbs in it.
My main question is this: I was hoping to add some sort of critter to this tank. I want something that won't need to eat crickets or other bugs, and that will be happy in this tank. I know that fire belly toads can sometimes be trained on feeder guppies. Is this a good source of food? Or does it lack nutrients?
If so, would I be able to have two or three of these toads in this tank?
How much do they eat, and how often?
I have done research, but I was more interested in the opinions of people here and personal experience.