A few days ago my guy started being a little quiet, right after I gave him his first live plant. Since then, he's been about the same - lazy, but will eat and interact. He just likes to go to the bottom and put his front find out and sit. I noticed that he is missing his top fin very suddenly and he has a ton of holes in his fins. I presume he tore it, as it happened overnight and he did have some plastic plants in there (hence my switching to live plants, as well as due to a severe algae bloom in his tank). Parameters are perfect save for high pH. I did do a full water change after he started acting funny and after I added the first plant to see if I could get rid of the algae bloom. His cycle did not crash, and all is where it should be in the water test. What's going on? Is he stressed from the new plants? is the torn fin making him tired from swimming? Is it something else? He's in a 5.5 gallon cycled, by himself, 80 degrees.