





So my 10gl has been running for over a year now and it's been very stable, but last night I went to check the water before a water change and it's reading 0 nitrates, it is normally between 5 and 10 ppm.
I haven't changed anything about the tank so I don't know what caused this or how to fix it.
The tank is stocked with one Betta and a bunch of bladder snails, with a nix of live and silk plants.( Java moss. Jaba fearn and an anubias)