I've got a 80 gal tank, with a filter and a skimmer and without sump.
The tanks isn't much populated, since there are 10 small - medium fishes.
I'm changing 20% of water once a month but I'm not satisfied with the level of nitrates. Since the third week they are higher than 25.
What should I do to gain a better control of nitrates?
Thanks
The tanks isn't much populated, since there are 10 small - medium fishes.
I'm changing 20% of water once a month but I'm not satisfied with the level of nitrates. Since the third week they are higher than 25.
What should I do to gain a better control of nitrates?
Thanks