Quick question.
92 gallon tank
3 fat fancy goldfish
Fluval 404 filtration
Water perims are:
PH 7.8
Am 0
No 1 0
No2 40+ (really hard to tell after 20+ but looks like it's in the 40 ppm range)
Performing 25%-40% water changes every 4 or 5 days and the No2's are this high within 24 hours of a water change.
I have bio rings in two trays and crushed coral in the other two trays of the canister. This has been my setup for 7 months and until a month ago everything was fine.
Is there something else going on in my tank or have the goldfish grown enough that I need to add a second filtration system. Seems a tad strange that the other tests are excellent and this one is the only one that's off. I know this particular test can be sensitive. Is it possible those chemicals have gone bad.
The fish are fine. Healthy and active. The largest one, a 9" Ryukin sits in the corner for an amount of time but still spends plenty of time being active. The other two fish are 5" and 4" on length.
Thanks alot guys and hope everyone is doing great!
92 gallon tank
3 fat fancy goldfish
Fluval 404 filtration
Water perims are:
PH 7.8
Am 0
No 1 0
No2 40+ (really hard to tell after 20+ but looks like it's in the 40 ppm range)
Performing 25%-40% water changes every 4 or 5 days and the No2's are this high within 24 hours of a water change.
I have bio rings in two trays and crushed coral in the other two trays of the canister. This has been my setup for 7 months and until a month ago everything was fine.
Is there something else going on in my tank or have the goldfish grown enough that I need to add a second filtration system. Seems a tad strange that the other tests are excellent and this one is the only one that's off. I know this particular test can be sensitive. Is it possible those chemicals have gone bad.
The fish are fine. Healthy and active. The largest one, a 9" Ryukin sits in the corner for an amount of time but still spends plenty of time being active. The other two fish are 5" and 4" on length.
Thanks alot guys and hope everyone is doing great!