Hi everyone! So my boyfriend and I have adopted my mother's 75 gallon bow front tank. I'll spare details and get to the point... As newbies, I just want to make sure we keep the right mix of fish. We started off with just getting colorful fish, and soon realized that wasn't the best way to choose fish. Right now we have a school of 5 green tiger barb, a school of 4 black tetra, 2 bala shark, 2 pictus catfish, 1 silver zebra angelfish, 1 red gourami, 1 pineapple platy, and 1 trinidad pleco. I just want to make sure we are not overcrowding our tank and that we don't have too many different species... And also that these fish work well together. Any advice? We don't want small fish as we have had issues with them getting sucked into our filter (aquaclear 110).