I have 8 Gallon tank working from last 4-5 months having 6 Tiger barb and 1 Blue Garoumi. Whenever I put any forum here people here out tells me that it is over crowded. Is it really crowded ??

So now I am thinking to get rid off it and exchange with my LFS. And I want to know which fish I can get for my 8 gallon tanks. I want maximum fish so i can grow plants also in it.