debisbooked
Aquarium Advice Regular
Here's the situation: quarantined three skirt tetras for 20 days and then added them to 75g after drip acclimation of one hour (yesterday). After a few minutes of confusion, the three started to tag along with the five skirt tetras already in tank. Everything looked good; all eight were schooling nicely for hours before lights out last night. This morning, (and before tank lights on), I notice the whole group is madly zinging and twirling around, up and down and across the tank. It looks like the largest tetra (the former leader) is being harassed continuously. What is going on? Is this a new pecking order being established? Is this going to end with dead tetras from stress?