Hey y’all, new the forum. I recently got my first 2.5 planted nano tank with a small sponge filter and have cycled it for over a month. I did water testing and everything seems to be good— little to no ammonia, good pH, at room temperature, etcetera. I recently got 2 shrimp (1 amano and one “blue shrimp”) from petco. I temp acclimated them for 20 mins and then drip acclimated for 2 hours. They were kind of in shock at first but then started to move around. It’s been 2 days, so I get it’s still early in adjustment, but I just did a very small water change and they went back into weird behavior after an hour. Very lethargic, twitching, not swimming around. The amano has started to turn red, but I think that started before the water change. I’m not sure what I did wrong because everything is properly cycled and seems to check out. I thought maybe it was because I added 66 Fahrenheit water, and the tank is at 71-72? Could this have hurt them? I also know that my water is on the harder side, I use dechlorinated tap. Any ideas? There is nothing else in the tank other than a rock and 5 different types of plants (it’s heavily planted).