Two days ago I changed 128 l (85%) with unconditioned water. NO3 down to ~75 mg/l. Added 5.2 ml of ammonia 8%.
24 h later, NO3>>100mg/l (offscale, likely around 200 mg/l), whereas ammonia keeps being eaten completely.
Where are all those nitrates coming from??!
I just have river sand, a polyresin root, and an artificial stone (some kind of concrete), bought in an aquarium shop, so hopefully safe.
So far pH is stable.
I could stop feeding ammonia, but then...
Help!
24 h later, NO3>>100mg/l (offscale, likely around 200 mg/l), whereas ammonia keeps being eaten completely.
Where are all those nitrates coming from??!
I just have river sand, a polyresin root, and an artificial stone (some kind of concrete), bought in an aquarium shop, so hopefully safe.So far pH is stable.
I could stop feeding ammonia, but then...
Help!
