My Crayfish tank

[freshwaterfishlover]

Here is just a question. In a heavily planted tank with a Blue Knight Crayfish what do you think of 5 Silver dollar Tetras starting out at 3" in a 20 Gallon?

[cocoa_pleco]

should be ok

[Severus]

Silver Dollars get around 6" and will be too big for that 20gal. Just be prepared to move them. At the present they are ok size and fast enough to avoid injury so you will be fine.

[f1oored]

Silver dollars are great fish but they do get big and they are powerful swimmers. 20 gallons will not hold 5 of them for very long. Also I don't think they are tetras.

[jeffs99dime]

silver dollars are characins just like tetra and piranha