quick question.. just bought a new fish. a pleco he is about 3 inches long but he is dark black with white dots and stripcs.. he's not a zebra pleco wondering if he is a false zebra pleco? i'm not sure how to identify him.. i can't find money profiles on plecos right now.. anyways, he was doing fine for about 3 or 4 minutes after i transfered him into my tank but then all of a sudden he stopped swimming and is just chillin on the bottum of the tank now.. looks a little stress so i turned the light off, the tank is open but there is only one other fish in there with him.. a ID shark, about 1 1/2 inches long.. tank was cycled and water is clear now but he seems a little shocked.. only thing I can think of do plecos not long brackish waters? other plecos I have are fine in these water conditions.. i'm thought i transfered him rather smoothly.. had him in a fish bowl then gradually added about a half cup of water from the tank every few minutes but i duno why he's just sitting there now.. !! help please he's a really cool looking pleco.. i have a several other tanks.. should i try and transfer him again??!! i dont want to but if i have to will.. any suggestions???