Re: axolotl - advice wanted on setting up and keeping Pls
#2
Axolotls are less sensitive to nitrate than most fish, but the sensitivity to ammonia and nitrite is about the same. Unlike most salamander larvae, axolotls dont exists in temprorary pools, they actually live in surprisigly deep water in only two mexican lakes, both of which have very stable conditions, and outside of being bred extensively in the hobby and as a laboratory animal, they dont have a wide distribution in nature.
Consequently they are a bit more susceptible to tank crashes than your average salamander larvae, who are used to tougher conditions often in poolms that dry seasonally. Unless especially governed for metamorphosis, they stay in this neonatal stage forever. You wouldnt want them to metamorphose anyway, because when they do the adults are weak and usually dont live long, and only gertain genetic lines can acheive it with any degree of success.
In short, those gills of theirs arent to resilient to toxins, and in every respect you want the filtration to be as tp notch as it would be for a 1 foot goldfish. Ever seen a fully adult axolotl? Its a big 11 inch or so animal, and they need spacious aquaria. You wouldnt want less than a 30 gallon really. Make the oxygenation good, although in a rather twisted way some hobbyists dont like to give them too much oxygen because the axolotl has a limited ability to enlarge its gills in response to low oxygenation making them look a bit more spectacular. Wouldnt do it myself though. id give them proper aeration.
Given less that adequate water quality they are also very susceptible to saprolegnia, and probably most people kill then with that and by gill erosion than any other single cause. Temps would be the average tropical values, they dont especially like bright light, and they love plants to anchor themselves in, and elodea is usually a good choice. You dont actually need substrates for them, but choose nice non abrasive ones, or lots of flat pebbles if you do. Ph is negotiable, though slightly acid would be more normal for them.
Diet is easy, anything living basically. All the usual worms, fry and small feeder fish, gut loaded crickets, moulted mealworms, small uncooked chunks of chicken, tiny amounts of beefheart etc. Some individuals never take pellets or turtle foods, so you might have to persist with them , and keep wormy foods as base diet.
Their care is uncomplicated as long as you keep good basic standards, dont try to make a community animal out of them though, they eat small fish, and bigger fish nip their gills. Other aquatic reptiles will maim them, and one axolotl I had tried to eat a frog, so a species tank is best. Theyre also not above cannibalising smaller specimens,and they can occassionally even be territorial, so its better to raise a few small specimens together than to introduce different sexes etc later on.
Aside from all that , theyre quite easy. Easier than they sound anyway.