croc skinks and frogs?

Question
Hi I have a 2 red eyed crocodile skinks in a 24 x 18 x 18, exoterra.  2 UV lights and a 50 watt heat lamp. i keep  High humidity usually in between low 75% high 95%.  I keep the tank at night around 22 degrees or 72 Fahrenheit. and during the day about 25 or 26 or 78 Fahrenheit.  I have fed them a diet of meal worms phoenix worms and crickets (they seem to go enjoy the worms more then crickets) they are very shy and hide away from site most of the time.  I recently got 2 red eyed tree frogs and 2 red legged walking frogs. What I'm wondering is if it is alright to cage these together? the frogs are roughly the same size and I'm not so worried about them being together because the tree frogs stay in the foliage and the walking frogs tend to burrow and hide away. I am more worried about the frogs freaking out the skinks and the skinks not eating.  should i give it a try and see what happens? should i get a larger terrarium?  or is this just a stupid idea i should erase from my brain?

Answer
It's usually a bad idea to house different species of herps together, because they may transmit diseases or parasites to one another.  This is particularly true of imported animals, and animals that are new to your collection.

New animals should always be quarantined in a separate room, with care taken never to transfer equipment and to always wash hands between the two.  Many state 3 months as the minimum quarantine, but I personally use 12 months, as some reptile viruses can incubate for more than 10 months.

Your animals also come from different parts of the world, so bacteria that has no effect on one of them may cause a dangerous infection in the other.

All imported animals should be checked for parasites in the first few months that you have them, as well.

Living with other species is stressful for these types of animals, and so I do not recommend that you house them together in any case.  Don't forget to dust crickets and mealworms with calcium powder.  It sounds like you are caring for your crocodile skinks quite well.  I'm not highly familiar with this species, so keep in mind that the penetration of UVB from fluorescent lights is usually about 6 to 8 inches, max, so if they are not basking up high, they are not getting much UVB, and may do better in a long and low tank, instead.

Since I am not familiar with the species, I trust you know if those temperatures are correct for them.  I am fairly sure they are not quite high enough for red-eyed tree frogs, however--I believe they prefer a daytime temperature of 80F.