Those Darn Nitrates.

[ShanerBock888]

I change water every other day and the nitrate is red color.

Sounds like a definite over stocking situation. How big of a tank and what fish?

Also, nitrates can also remain high despite water changes with improper maintenance. Sometimes waste can be trapped in gravel or in mechanical filtration (filter floss etc.), or in the bottom of the filter, so it's not floating around in the water, but it's still in the system and leeching nitrates back into the water. So maybe a thorough gravel vacuuming, clean the filter, change the filter floss or other mechanical filtration more frequently. But this shouldn't be the only problem, you probably just need a bigger tank for the amount of fish you have.

 

[ShanerBock888]

Also, is it possible that you're overfeeding? if your fish aren't getting to all the food it could be rotting in the tank and adding to the high nitrate levels

 

[Richard203]

Also, is it possible that you're overfeeding? if your fish aren't getting to all the food it could be rotting in the tank and adding to the high nitrate levels

I just got 1 jardini in a 6x2x2 tank. I feed it shrimp every day. For filteration I got 1 fx6 and 2 ac110 also a nitrate reactor with de nitrate and matrix in it

 

[ShanerBock888]

I just got 1 jardini in a 6x2x2 tank. I feed it shrimp every day. For filteration I got 1 fx6 and 2 ac110 also a nitrate reactor with de nitrate and matrix in it

ok so not overstocking. It's possible that you have a build up of mulm in your filter or substrate. Do you have gravel or sand? With gravel especially the waste and uneaten food can settle into the substrate and build up for a while, then eventually it's basically feeding a constant stream of nitrates back into the water. I've had tanks with gravel and something similar happened - nitrates rose really quickly despite frequent water changes - and I solved the problem (or at least improved it) by either changing the substrate or doing a thorough gravel cleaning a few days in a row. Maybe try that and also giving your filters a thorough cleaning. Basically just keep an eye out for somewhere in your setup that's essentially storing a bunch of nitrates.

I've never kept Aro's, but you could also try feeding a little less frequently. Most larger fish do not need to feed every day. I know my RTCxTSN seems to produce 3x the waste when he's fed just 2x more frequently.

 

[Richard203]

ok so not overstocking. It's possible that you have a build up of mulm in your filter or substrate. Do you have gravel or sand? With gravel especially the waste and uneaten food can settle into the substrate and build up for a while, then eventually it's basically feeding a constant stream of nitrates back into the water. I've had tanks with gravel and something similar happened - nitrates rose really quickly despite frequent water changes - and I solved the problem (or at least improved it) by either changing the substrate or doing a thorough gravel cleaning a few days in a row. Maybe try that and also giving your filters a thorough cleaning. Basically just keep an eye out for somewhere in your setup that's essentially storing a bunch of nitrates.

I've never kept Aro's, but you could also try feeding a little less frequently. Most larger fish do not need to feed every day. I know my RTCxTSN seems to produce 3x the waste when he's fed just 2x more frequently.

My tank have sand and my jardini is like 5 inch that's why I need to feed it once a day it suppose to be 2x a day but I cut bak cause of nitrate

 

[ShanerBock888]

My tank have sand and my jardini is like 5 inch that's why I need to feed it once a day it suppose to be 2x a day but I cut bak cause of nitrate

wow, my bad, I assumed it was larger since the tank is so big but still high in nitrates. Definitely don't decrease feeding then. Have you tested the nitrates straight out of the tap? Sometimes tap water can have nitrates

 

[Richard203]

Mybe might try testing tomorrow.

 

[jwh]

I change water every other day and the nitrate is red color.

You need to do 90% waterchanges every day for a couple of consecutive days until you get a "yellow" test result, denitrate, matrix, lava rock will only reduce nitrates when you create anaerobic conditions and a very slow flow rate with carbon dosing, adding these to you filter or a high flow reactor will not reduce nitrates. Do you have substrate, and do you vacuum it regularely?