HELP---Ammonia Levels Questions

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soulFish

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MFK Member
Jan 14, 2007
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Tampa, FL
Ok my main display tank's ammonia levels have sky rocketed recently. We're also in a water restricted county, due to drought. The ammonia never was this high before I cleaned the tank. Before cleaning the tank it was never this high. Now it's reading 1.0-2.0 :eek:. I'm doing about 30% water changes every 3-4 days. And last night I put a bunch of Ammonia lock in the tank. That seemed to help the fish pretty instantly. But now I came down this morning and they are all breathing heavy. So I'll do another change, but 50%... keeping in mind this is a 220 Gallon tank.


But what could cause this sustained high level? This is how I cleaned the tank. The biomedia and the gravel all stayed in the tank, it did not get cleaned to keep the benificial bacteria healthy.

1. The wood was pressure washed with tap water.
2. The rocks and fake plants were soaked in a bleach solution and rinsed a first time.
a. then soaked in water with stress coat decholinator 24hrs
b. then soaked in tap water 24hrs
c. then rinsed

My wife was thinking it could be low levels of bleach leaching out, since bleach is alkaline and that could read as ammonia. But even if it was that she was saying that since it's not getting added to the water it should disipate over time with water changes. But at this point I'm not sure what I should do.

1. Should I continue to use amonia lock?
2. Should I get something else?
3. I'll keep doing water changes until, hoping the water department doesnt restrict our house (and they can and do do this) :WHOA:

I'm just outta ideas
 
I don't think it's the bleach given all of the rinsing you did. I wash my canister inserts with bleach, rinse them once and let them dry in the sun and I've never had a problem.

Sounds like when the ph changes rapidly from a large water change and you get an ammonia spike.

If your tank is cycling again for some reason and you continue to do massive water changes, your only slowing the process. Get some live bioballs from your lfs or some goop from the filter of a good tank, and add it to yours to seed it. Use Prime 2x daily in the meantime to control the toxicity of the ammonia and ride it out. You'll still get high ammonia readings until you have completed cycling, but it won't be toxic to the fish. Good luck.
 
What do you feed your fish? Maybe uneatten food/lost feeders stuck in the filter?


soulFish;1945920; said:
Update I tried a few tests and ran a control.

Ammonia level in tap: 0.50
Ammonia level in tap + one drop of bleach: 0

So looks like the tank is crashing like it's cycling all over, or too much waste or something else?
 
Question:

Do ammonia levels spike after a water change?

And would it do so if I changed the mechanical filtration?
 
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