hi, the best place to get information from is this forum: http://www.axolotlforum.de/wbb/index.php?page=Index it is in german but google translate will help you. several people on that forum have degrees and studied axolotl, they really know what they are talking about. another good place for information about amphibians is: http://www.caudata.org/forum/f46-beginner-newt-salamander-axolotl-help-topics/f48-axolotls-ambystoma-mexicanum/
what to feed is a good question and I know I put myself into murky water with my answers. I know lot's of people recommend ox heart but don't feed it, Axolotl have problems to digest mammal meat, their digestive system runs in overdrive if feed with meat. don't feed them anything you buy frozen as you don't know how many times the 'axolotl food' was defrosted and frozen again until it did end up in your hands. Axolotl pellets we can buy here in NZ, not recommended as this pellets are more or less re-branded turtle or fish pellets with ingredients which do more harm than good to the Axolotl.
- garden worms (tweezers)
- grass grubs (tweezers)
- Leopard fish (alive)
- White Cloud Mountain Minnow (alive)
- all sorts of moths (tweezers or water surface)
- crickets (remove back legs) (water surface)
- locusts (remove back legs) (water surface)
- fish filet (fresh water not sea) (tweezers)
- koura (just the meat) (tweezers)
- all sorts of water insects including damsel fly nymphs (except the big dragon fly larva, they can do harm the Axolotl) (alive)
- chicken heart and chicken liver (tweezers)
do not use gravel in your Aquarium as the Axolotl will swallow it while feeding. use sand and/or big stones. don't use bright light as the Axolotl prefer dimly-lit. avoid current or flow in the Aquarium. give them many places where they can hide. do not use drift wood in your aquarium, it can harm your Axolotl. do not use any kind of water purifier, it will harm your Axolotl. if possible use rain water. chlorine will harm your Axolotl. (if you have chlorine water out of your tap let it rest for several days in a bin to let the chlorine evaporate, if you put an air stone in it will accelerate the process)