I added some new plants to my shrimp tank, did a 15% water change, then left for my puppy's obedience class. Now I'm back home and I've noticed that all of my male shrimp are swimming crazily around the tank. They dont stop, just swim around the edges. The two females are just chillin on a plant. I fed them today, so I dont think they're hungry, and the water params are still all the same. Did a copper test and that is at 0.
Should I be worried about them?
Should I be worried about them?