Quick stats:
40 gallon tank
Started with 25-30# of mature LR from friend's tank
3.5-4 weeks into cycle
Ammonia and Nitrate have been at 0 for a week now.
Nitrates are not falling.
I started with a 20% water change, 3 days later did a 30% wc.
Last night I tested the Nitrates and they were still around 40-50ppm.
I changed 50% of the water and today I'm still at 30-40ppm.
The Nitrates are falling, but very slowly. What should I do at this point?
40 gallon tank
Started with 25-30# of mature LR from friend's tank
3.5-4 weeks into cycle
Ammonia and Nitrate have been at 0 for a week now.
Nitrates are not falling.
I started with a 20% water change, 3 days later did a 30% wc.
Last night I tested the Nitrates and they were still around 40-50ppm.
I changed 50% of the water and today I'm still at 30-40ppm.
The Nitrates are falling, but very slowly. What should I do at this point?