yes i think over time the length will get a bit tight butthat will be a while. and eveb though the length might be tight you would still have a heap of width
exactly what t1 said... yea u could keep a sil in that pond, and yes it probably will be fine for years. no it is no ideal, the length is really too short but it would do. watch ur water quality and dont overstock it....
Well that's close to 7' diagonally for what that's worth. I'd say it's ok but surely on the low end...but if you think of it people will recommend an 8x3 footprint and the area is nearly the saem. Yeah less length but with the extra width he can actually swim in a circle rather than just back and forth. If he gets over 36" you'll probably want something a bit bigger.