If his eye is well and has been for a while and he is active and eating and swimming well then I will say he is well enough. If he gets into trouble again you will know that there is something in the tank he is not able to handle and he will have to come out again. That is the only way to find out. But it is not likely as this type of thing does not usually happen over and over but is rather rare actually.

He sounds very active and happy and rearing to go and ready to be in larger pastures, so to speak so do as you will with them all and rearrange to your hearts content. Just tell him I told him to behave himself in the big tank...no more problems from him. LOL He has given you enough heart problems.

Let us know how he is doing as he has become quite the favorite here.

Rose