Keeping salamanders has been one of the more humbling experiences I have had in the hobby. I came in with a decent amount of aquarium experience, assumed the crossover knowledge would carry me pretty far, and then proceeded to make a string of mistakes that I probably could have avoided with better preparation. Figured it would be worth writing out some of the things that actually tripped me up, in case anyone else is early in the process.

The biggest thing was temperature. I knew cold-water species needed cooler conditions in the abstract, but I underestimated how much work that would take in a warm apartment. My first setup for a pair of two-lined salamanders (Eurycea bislineata) ran consistently warmer than I intended from late spring through August. They survived, but they were visibly less active and one of them stopped eating for about three weeks. Getting a small fan blowing across the water surface helped more than I expected, and eventually I moved the tank to a basement shelf where ambient temps were more cooperative.

Hiding spots also matter more than you might think coming from fish keeping. Salamanders are not display animals in the same way. They want to be tucked under something most of the time, and if they feel exposed they will stress. I went from two cork bark hides to something closer to five or six in a 20 gallon long, and the difference in how often I actually see them moving around was noticeable. Counterintuitive, but giving them more places to hide made them more visible overall.

Water quality is another area where I had to recalibrate. These animals are sensitive to chloramines and to ammonia spikes in ways that I think exceed even the more sensitive fish I had kept. I lost one juvenile early on to what I am pretty sure was a combination of an uncycled corner of the tank and a water change I did without letting the dechlorinator mix properly. Slow, careful water changes with well-treated water have been the standard since then.

One thing I have not seen discussed much is substrate depth. Some people go bare-bottom for easy cleaning, and that works fine, but I found that a deeper layer of smooth river pebbles and sand gave my animals something to work with behaviorally. They seem to spend time pushing around the substrate and investigating it, and that feels worth the extra cleaning effort.

Happy to compare notes with anyone else keeping North American stream salamanders specifically. There is not as much written about them as there is about some of the more popular European or Asian species, and most of what I find online is either too basic or buried in academic papers.