So I went tonight, and my new addition to my 30gallon was some Harlequin Rasboras. I have never had them before, but I love them they are so active, schooling together.I bought four, they are getting along with my 3 platys. One of my platys was not doing well. So I had to put him to rest. Now I have 4 Harlequins, 1 Oto, 3 Platys, 1 Amano Shrimp. How much more fish can I add?
