the tank is 128x45x45cm 260l it has a 300w heater 2x 48" 40w lights 2x filters one built into the hood the other is a fulval 305 with pre-filter,bio-max.carbon and foam/sponge my mate is going to have my loaches when they get to big for my tank they are only 2" at the mo so a while yet before they have to go the water readings are
amonnia 0
nitrite 0
nitrate 20
ph 6.6 hope this helps