I have 2 tiger salamanders that are about 6 - 8 inches long each, currently housed together in a 10-gallon aquarium (will be upgrading to larger setup) on coconut fiber bedding. They have a hide and a water bowl for soaking (using dechlorinated water). The substrate is kept moist.

Both have been eating well and have been little beggars. Nightcrawlers are their staple food. I feed them each 1 or 2 2-inch long earthworm pieces a day or every other day. They seem chubby and have been doing well.

Tonight one of the salamanders is not doing well. It seems weak, breathing heavily, no interest in food. I'm not sure what is going on -- any ideas? The other one is fine and begging for food as usual.