What's wrong with Humperdink?

[MrFunkhouser]

To back up Dalton: Never keep several different species of frogs in the same cage. They are usually poison to each other and they can eat each other.
In fact... keeping two frogs of the same species together can be dangerous as well if they are of dramatically different sizes as, again they can eat each other. (Which creates the question: are Neitzsche and Shylock the same size?)

As Dalton said you should probably separate all the frogs ASAP. Perhaps have one cage for Gary, one cage for Phase for Squarepusher, one cage for Nietzche and Shylock and one cage for Humperdink. Keep in mind that different frogs generally require different aquarium sizes and set ups. Also keep in mind that the more frogs you have in one cage the bigger that cage must be.

Nietzsche and Shylock are roughly the same size, the smallest is the grey tree frog but most have been together for 4 months without any attacks, in fact, we've seen the whites and tomato sleeping next to each other quite comfortably. I spoke to the shop owner who told me he has another customer who has a 3ft wide by 3ft high palidarium which has 3 milk frogs, 3 whites and 3 golden flying frogs all living together, and all positively thriving. He suggested that humperdink may just be stressed with a lack of space, i'm taking him in tomorrow so he can have a look.

Would anyone be interested in doing a swap if the toxicity issue needs to be addressed?!

[Shanny]

Yes, as a general rule you should not mix different types of frogs in one terrarium.. That alone can stress them out

[Badger]

Well, quite frankly he is misinformed. What you see as "sleeping together comfortably" is more likely asserting dominance over the other frog. Do not mix species, let alone mix them in that small of an enclosure.

[Crystal6]

Nietzsche and Shylock are roughly the same size, the smallest is the grey tree frog but most have been together for 4 months without any attacks, in fact, we've seen the whites and tomato sleeping next to each other quite comfortably. I spoke to the shop owner who told me he has another customer who has a 3ft wide by 3ft high palidarium which has 3 milk frogs, 3 whites and 3 golden flying frogs all living together, and all positively thriving. He suggested that humperdink may just be stressed with a lack of space, i'm taking him in tomorrow so he can have a look.

Would anyone be interested in doing a swap if the toxicity issue needs to be addressed?!

To be frank, you got lucky. Here's a link from the Firebelly Toad Article you might want to check out if you really want to house several different kinds of frogs together... Caudata Culture Articles - Species Mixing Disasters

This problem actually comes up quite frequently here. Here's so more topics on this forum that address it.
http://www.frogforum.net/tree-frogs/...g-species.html
http://www.frogforum.net/vivarium-te...vironment.html
http://www.frogforum.net/vivarium-te...ixing-zoo.html

I don't mean to be a pain. I'd just hate to see something bad happen to your pets. Especially when you acknowledge that one of them is already starting to get ill. Frogs tend to absorb things through their skin and thus having them in a cage with several others who are producing toxins is rarely a good idea... The only reason it works in the wild is because they have tons upon tons of space apart from one another and they aren't all trapped in a small space together at all hours of the day.