Hi i am new to the site, and quite new to keeping an aquarium, i have a 15g tank , and at the moment i have 1x common pleco, 6 x black tetra ,6 x neon tetra, 4x blue rams, 1x red tail shark, 2 x platy, and 6 x silver tip tetra .
Here is my problem , i seem to have one domminant silver tetra...