Have a wide variety of fish In my 40
gal.
1 Angel
6 Black Skirt Tetra
3 Platys
3 Comets
1 gold qourami
1 pink kisser
Everyone has together for about 9 months. The comets are getting larger and I was wanting to know if these fish will outgrow my tank. I have been thinking about going to a 75. Do u think that would be a better size?