The tank is 30 us gallons, and it includes 1 read eye tetra (4 were lost in infection), 4 congo tetras, 1 Plecostomus sp, 5 clown loaches, 2 Brochis splendens, and 2 other tropical fish not sure of their type.
The PH is at about 7.6
The Ammonia is at zero
The nitrates are at 0 ppm
I can tell...