new vivarium

[davy]

hi there
ive been given an 18 "x 18" vivarium with 2 Iberian Ribbed Newts
3" water in the bottom with 2 doors on front 20" high , and was wondering if i could keep a couple of tree frogs in there as well. any help would be welcome.or should i take the newts out as i would really like to keep some colourful tree frogs but am a complete amateur.i bred show pigeons for 30 year but got chest problems and now looking for some other interest
regards davy

[brandongalea]

It is never advisable to mix species