Sounds like a mini cycle from cleaning out your filter. Do a large water change with prime until your nitrites are back to zero. You should try to bring your nitrates down anyhow as they are sky high
Hydrogen peroxide which would help boost oxygen levels if needed. But im sorry i didnt look closely enough at your OP. Nitrates and trites could very well be the issue, but ive had them both that high with little effect on my neons tho. Perhaps another water change will help? Also your dKh and pH could give you a clue as to whether you really do have a high level of CO2 (hence lower level of O2)No CO2, I dose with flourish once a month. what is H2O2?
I clean my filter about every 3 months. I have always tossed the old pads, figured I have enough bacteria in the dirt and the 2" foam pad. I rinsed the foam pad with tap water. When I set this tank up it never "cycled" because of the dirt, I put about 30 fish in within a week and never lost one. This is the first time I have lost a fish in this tank, besides when they jump out.Sounds like a mini cycle. As others have pointed out, your nitrites need to be down to 0 and your nitrates are crazy high. How often do you clean your filter and why did you toss the old pads? When you rinse the foam pad are you doing it with tank water or tap?
I feel a little silly H202= hydrogen peroxide... duhh I was thinking some brand name of aquarium product....Hydrogen peroxide which would help boost oxygen levels if needed. But im sorry i didnt look closely enough at your OP. Nitrates and trites could very well be the issue, but ive had them both that high with little effect on my neons tho. Perhaps another water change will help? Also your dKh and pH could give you a clue as to whether you really do have a high level of CO2 (hence lower level of O2)
Since the substrate is dirt, I am pretty sure I did not suffer from a lose of bacteria in the tank. Many don't even run a filter with a dirt tank. I think what happened is that I planted one sword that was growing from another and disturbing the soil caused an anaerobic condition. My fish have been jumping out of the tank since I set it up (maybe 1 every 6 months), that is the trouble with a rimless tank and no lid.It sounds to me like your fish are suffering from "old tank syndrome." This happens when someone does no water changes, only top-ups, for months or years and then suddenly does a significant water change. What is coming out of the tap is so different from the water in the tank that your fish cannot handle it. Then, you get a death or two, and the scene is set for a mini-cycle. Ammonia and nitrite spikes lead to more deaths, and next thing you know, the tank is spiraling. (Especially if you knock back the filter bacteria by throwing out media, rinsing with tap water, etc.)
Do not respond by suddenly doing a bunch of big water changes. Instead, do a long series of very small ones over the next several weeks. Dose, but don't overdose, with Prime daily, if you must, to lock up ammonia. (It's actually a temporary conversion of ammonia from one form to another. This helps prevent injury to fish, but doesn't keep plants and filter bacteria from utilizing the ammonia.) Add an airline/bubbler to increase oxygenation. Using Seachem Stability can help (re)build the filter bacteria. The nitrates will slowly come down, TDS will drop, etc. and your fish should easily handle the slowly improving conditions.
Once the tank is stable, please start doing regular water changes, preferably weekly.
Btw, fish jumping out of tank is often a sign of poor water quality. I suggest that you also test your water frequently until you know, absolutely, that levels are good, fish are healthy, etc.
Nitrite poisoning if what you posted is actual reading.Like the title said my fish are struggling to breathe, and a few of the older ones have died.
I have a 57 gallon, heavily planted(dirt tank) 10 neons, 10 rasbora, 2 large pleco, 3 small algae eaters, 6 oto, 2-betta, 3 tetras, 1-bala shark, 1 dwarf gourami, 20 -ghost shrimp, 3-yoyo loach (4in), 1 clown loach (2in),
The water conditions are:
Nitrate: 200ppm
Nitrite: .5ppm
chlorine: 0
PH:6.8
ammonia:0
Temp: 75
The tank has been setup since July of 2012.
Here is what I did yesterday:
-Pruned some of the plants
-25% water change (Last water change was Sept of 2011)
-Cleaned the canister filter (same way I always do) replaced the 2 blue/white filter media, lightly rinsed the 2 inch foam filter.
The tank was fine last night, this morning my wife calls to tell me the neon's are swimming funny and at the top of the tank gasping for air. few hours later she calls and says a really old 7-8 yr old white cloud has died, and the bala shark (7-8 yr old) is swimming on its side.
the shrimp are fine, the betas are fine, most of the algee eaters are fine. It seams like most of the older fish, neons, and one Chinese algae eater are struggling.
I left work early to try and figure out what was going on, water seemed good from what I tested except for the nitrates. I added a power head and air pump to get some movement and O2 in the water. With in 10 minutes most of the fish seemed to start to relax a little but are still breathing harder than normal.
The power head is big moving 800 gal/h which is way to much water movement but the fish seem to like it.
Any help or ideas would be great.:help:
Thanks
Exactly. This is why I was wondering how you rinsed your foam pad. If you're set on not doing WC often as you should, the last thing you want to do is rinse anything with healthy bacteria on it in tap water.In the future don't rinse the foam with tap water. Rinse it in tank water. The chlorine in the tap water kills bacteria.
I would just like to say that this is one of best things I've come across on this forum that is not just related to this hobby. :flick:... My SWAG (Scientific Wild A__ Guess)