I have a 2.5 gallon tank with plants and driftwood. I put a small pre-cycled sponge filter in it and have been running it for two weeks with a large mystery snail. I recently purchased 10 crystal shrimp from a local store, drip acclimated them and 2/3 of them perished in the first 24 hours. I moved the remaining shrimp to an aquarium with my blind beta in it where they are doing well, but the water is too warm for them in there.
I really want to put them in my planted aquarium but i can’t figure out what caused the massive die off.
pH 6.4, ammonia 0, nitrite 0, nitrate 0
gH 5, kH 2, tds 128, temp 70 degrees
I know the tank is cycled because I check it every day and it went through a small ammonia spike, then nitrites were up for a few days, then I got a tiny bit of nitrate before everything went back to 0. The plants have been growing very well and the snail has been extremely active and happy.
Help or advice would be greatly appreciated.