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Pet Forum / Aquaria / Marine Reef / April 2007nitrite very high
i have a 90gal tank of late the nitrite has been very high, even after a 40% water change and a 20% water change a week later i havent lost any fish of late and have reduced the food, and missing feeding on some days. any pointers thanks > i have a 90gal tank > > of late the nitrite has been very high, How old is your tank? I'd add some "seachem stability" which has all the seed bacteria that you need to establish the nitrogen cycle. What happened is the first water change removed 40% of the nitrates. Leaving 60% in the water. The second water change removed 20% of those nitrates, not another 20% of the original level. So even though you have changed 60 % of the water, you only got 52% of the nitrates. If possible, changing aboout 70% and then another 70% will drop the levels significantly. That should drop your nitrates by about 90% from the current level Are you using R/O water? The tapwater in my neighborhood has low levels of nitrates in it. Over time, this built up in my tank. Another thing I found way back when was a waste buildup in the hose leading down to my filter under the tank. >i have a 90gal tank > [quoted text clipped - 8 lines] > > thanks August his original post stated nitrites not nitrates. This sounds like he's going through a cycle if its nitrites, but you are correct about the Nitrate and reducing them. More frequent water changes are needed to reduce the Nitrates. For nitrates, you should be 15 ppm or less Nitrites should be zero. ugust West" <mike@remove.professionalnetworks.com> wrote in message news:462def61$0$19406$4c368faf@roadrunner.com... > What happened is the first water change removed 40% of the nitrates. > Leaving 60% in the water. The second water change removed 20% of those [quoted text clipped - 22 lines] >> >> thanks Ooops. My bad. You'd think if I have a computer I'd be able to read by now..... > August his original post stated nitrites not nitrates. This sounds like > he's going through a cycle if its nitrites, but you are correct about the [quoted text clipped - 30 lines] >>> >>> thanks LOL > Ooops. My bad. You'd think if I have a computer I'd be able to read by > now..... [quoted text clipped - 32 lines] >>>> >>>> thanks > any pointers Is this a new setup? If so, the tank is still cycling. You can expect nitrites to start to drop in another week, assuming you have a decent bacteriological filter. If this is an established setup, your filter mechanism is defective or inadequate. If you have mechanical filtration, such as a wet/dry or a fluidized bed, make sure it's functioning correctly. With a fluidized bed, check in particular that the little pump that churns the bed up is still working. If you have the Eheim wet/dry, make sure that water comes out in cycles as it's supposed to. If you have an undergravel, it's probably clogged. The best thing to do with that is to replace it. If you are using live rock, make sure the water circulation around the rock is adequate. George Patterson If you torture the data long enough, eventually it will confess to anything. thanks for the replys guys, but it was the test kit that was fubar, and that was a brand new £50 complete test kit. i took a water sample to my local supplier and he done 3 seperate tests from 3 seperate kits and all passed. . > but it was the test kit that was fubar, and that was a brand new £50 > complete test kit. Good catch. > but it was the test kit that was fubar, and that was a brand new £50 > complete test kit. Glad to hear it. Hope you can get a refund. George Patterson If you torture the data long enough, eventually it will confess to anything. > i have a 90gal tank > [quoted text clipped - 8 lines] > > thanks More live rock. More sand. Add macro algea. Add xenia. add tridacnids. increase circulation. Get a fuge if you don't have one. Nitartes should be stable at 0 in a proper setup. you should not need to do water changes for nitrates at all in a reef setup. HTH. I think I smell a Troll. Wayne Sallee Wayne's Pets Wayne@WaynesPets.com August-18-search wrote on 4/26/2007 3:37 PM: > More live rock. More sand. Add macro algea. Add xenia. add tridacnids. > increase circulation. Get a fuge if you don't have one. [quoted text clipped - 3 lines] > > HTH. > I think I smell a Troll. > [quoted text clipped - 11 lines] >> >> HTH. Why would you say that? I did goof - the post was about nitrite, not nitrate. but the advice still holds. if the OP has any measurable levels of nitrite, something is very amiss with the tanks cycle. More live rock and sand should help. Fuge won't help nitrite, of course. but the rest of the advice was sound. Ok, you changed your name from "Add Homonym" to "August-18-search" and posted right after "Agust West". It' looked fishy to me :-) A fuge will help if there is live rock, or live sand in the fuge. And obviously the "tridacnids answer" was for nitrates, not nitrites :-) Wayne Sallee Wayne's Pets Wayne@WaynesPets.com August-18-search wrote on 4/27/2007 9:31 AM: >> I think I smell a Troll. >> [quoted text clipped - 22 lines] > More live rock and sand should help. Fuge won't help nitrite, of course. > but the rest of the advice was sound. |
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