Tank mates for my Fire-Bellies?

[None505]

I added 3 male Endler/Guppy hybrids in with my last two Fire-belly Toads and the Fire-belly Toads avoided the water until the fish were removed. The fish later died which I am assuming was from the toxins from the toads. Also with koi you would need at least 1000 gallons of water and feeder goldfish need at least 40 gallons of water and a strong filter and they grow so big that they might be able to eat a Fire-belly Toad unless they died from the toxins first. With the feeder minnows you would only need about 20 gallons of water but as with any feeder fish they tend to be loaded with parasites.

[Spoket]

I have 8 fire bellys with small fish, i bought the fish for about 1 year ago and i havn´t had any problems (it´s an old pic of my aquaterrarium)