Just joined today and already have learned a lot from reading various Q&As. I removed my plecos (2) from my pond as it was getting too cold for them to survive and set them up in a 55g tank. After reading all the dos and don'ts, it seems like I've already made a ton of mistakes, but since time was of the essence, I really had no choice but to get them in a warmer environment if I wanted them to survive. My first goal was met - both are eating and appear healthy. Anyway, here's the problem, the plecos lived a rather harmonious existence in the pond, but the larger of the two now seems to be less enthusiastic with his/her tank mate. The larger one is perhaps 8" nose to tip of fin and the smaller maybe 5". Since they are a bit messy, I'm getting elevated ammonia levels, all other readings are normal. Questions? Too many to list -so I'll limited to just a couple. Getting the ammonia level down, water change? Second, best way to clean the gravel of waste?
Thanks for any help or suggestions
Thanks for any help or suggestions

to the forums.