TLDR: The one on the right.
Name: DSC00281.jpg Views: 2245 Size: 76.1 KB
It rained heavily over the weekend and where I live, that means frogs everywhere (and the occasional toad). I was walking my puppy late at night and she found the bullfrog on the edge of the road. It didn't seem to mind when I picked it up, but as soon as I put it into a 20gal half/half, she goes nuts when I enter the room and hides in this corner. My puppy was much less interested in the live bullfrog than the hundreds of corpses dotting the gravel sidestreet I live on (really... rain = amphibians galore here. I also have 2 american toads I found and 3 shamelessly purchased firebellied toads because I wanted at least one species that doesn't go ape**** every time I get near the tank).

I identified the one on the left as a female bullfrog. The one on the right I snatched up later as it was.. trying to hop through my back screen door. That spot attracts lots of frogs because of the veritable spiderpocalypse. Sorry I'm rambling, my point is I don't know what species this is. It's not shown on the Illinois database. IL Herpetology Species List | Illinois Natural History Survey | Illinois Now the bullfrog spot does describe something similar to this as being a bullfrog so... I'm just going with that then? From other characteristics, it appears to be 2 females of similar size (green snouted one is about 20% bigger). Should I loose the slightly smaller brown one next rain or will they coexist fine? When I approach, they hide together like in the picture, so they seem to get along. They are both perfect size to eat several "large" pet store crickets, but due to my growing collection (and shrinking tablespace), the cost of crickets is growing tiresome already. I've started a breeding box. The females of the store-bought crickets started laying eggs as soon as I put them in the substrate. I now have (by guess) 100s of eggs and have fed all the adults to these frogs.

Figures that, as soon as I start breeding crickets, the pet store "didn't get the shipment" (they don't breed their own? Seems simple enough...) so they won't have any until Friday. For some inexplicable reason, there are no other pet stores within a reasonable driving distance, so I decided to get some waxworms. The firebellies absolutely relished them (they cannot eat large crickets so the buy was mostly for them), and the 2 american toads both spotted the same worm and had an internet moment where it looks like they are staring each other down but there's a worm nearly burrowed into the soil. Unfortunately, the worm burrowed and I had to break up the "confrontation" to remove the worm. I had no luck with the worms and the bullfrog(s), as they will only eat when I am not around and the worms almost immediately started burrowing. They made it a PITA for me to get them out.

Anyways... I'm rambling again...

For reference, they're housed in a 20gal (long) aquarium with smooth gravel on both sides, split by a siliconed angled sheet of lexan. I have 4 fake plants but will be adding more, possibly siliconed to the waterside floor like 2 of them are (need to check the silicone seal as there is about a half inch of water on the bottom of the dry side. I can't tell if it's from splashing, as I initially had the water level near the top of the divider, or from a very slow leak). Edit: Also, the water is filtered.

Neither of these bullfrog(s) are full grown. The larger of the two is about 3/4 of my palm and my hands are medium-sized. How large will they get (I understand females are smaller than males)? Will they ever eat small fish (I tried 5 guppies but they went ignored for 2 days so I removed them)? If you had bullfrogs before, how long did they live on average (guides say different lifespans)? If I left town for 4 days to see family and fed them well the night before, would they be ok?

I'm used to firebellied and american toads but bullfrogs are new (and for some reason exciting) to me. Thanks for reading this long post and your (non-flame) responses.