This morning I got my first 2 frontosas. Not sure of strain, but one is about 2-3" other is about 3-4", cost $19.99 each. The smaller one is doing great, actively swimming around the tank and checking things out all day. The larger one, has been acting funny since it was bagged. during acclimation it mostly chilled in the corner of the bag. once in the tank, it almost appeared like shock, and he just sunk to the bottom, swims and floats, but has what looks like tremors or shakes. now about 8 hours later. less time on bottom, always floating, or swimming but never really moves other than the jerking in place. Is this normal? Sorry I don't have any pictures or video yet. Hoping it'll be ok, but as never having these, don't know what the movements are like. Yes I've done my research, but no I don't know how they move.