Caecilians have poor survivial rates if they have been out long enough for any of the skin to dry out. There is really not too much you can do but home for the best.

They are prone to attempting to escape but the attempts will occur more frequently if the water quality is allowed to go down (nitrates over 60 ppm, the water being too hard and/or alkaline).

I would suggest not using mela-fix as this a an extract of tea tree oils and has been shown to readily penetrate skin and can cause liver toxicity (as well as other issues).

Ed