DanS180
Aquarium Advice Addict
Not necessarily true. All the tanks I've had always had zero nitrates even when I went a few months without water changes. My brother hasn't seen nitrates either. It's very possible but a reasonable fish load is important. Lots of live rock and plants play a big role.
But you're right. He's got to feed the bacteria.
Okay well I'll just go get a cheap damsel for my sump after work today.
So what happens if the damsel dies? Is my water just contaminated with an unknown element? Lol