Silver Dollar compatibility

[Z Trip]

I have a 85 gallon tank with 7 silver dollars.

I would like to add more silver dollars so that theirs a bigger school. If I put a rd hook in thier, will it fit in with the rest of them? I was thinking to bumping the number of silver dollars too 9.

Is this a ok idea?

Z

 

[Cichla dude]

Yeah you should be fine. Just keep in mind that Redhooks do get over 10''.
Alex

 

[Bogwoodbruce]

All dollar species school with each other.

 

[Dmaan.]

They should be fine.
Dollars will school at all times.
Even if it's just 3 dollars.

Do you have these fish just by themselves or with other fish?
They look nice in SA CA tanks, well imo.