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View Full Version : [Freshwater] Ammonia level spiking, even after waterchange



adamcaso
Thu, 2nd Feb 2006, 12:39 AM
Apologies in advance, this post is kinda long. Here's a summary for those who don't want to read it all:

1. Ammonia level spiked
2. Did 50% water change, removed some fish and decaying plant matter
3. Ammonia level keeps spiking
4. I removed everything that could possibly be generating ammonia from my tank and did another 50% water change, ammonia levels STILL insanely high.

I have a rather bad problem with my 10g freshwater tank. For reasons unknown, my ammonia levels spiked way off the chart and have remained insanely high even after I've done everything I can think of to remedy the problem.

I'm fairly sure I know what started the cycle, I got a pretty good deal on neon tetras, but the fish store employee would only sell them to me at that price if I bought 10 of them. With a 3.5-inch algae eater, a 2-inch molly, and a full-grown tetra already in the tank, I think the introduction of way too many new fish crashed the tank. At the same time, I also bought a small plant to put in the tank, and a big mass at the center of the plant started to rot without me knowing it.

I woke up one morning and my tetras were doing backflips (literally) in the tank, and I freaked out. I checked the ammonia levels, and they were way off the charts.

I removed the tetras to a friend's tank, cleaned up the rotten and dead plants, and did a 50% water change over the course of a week and things calmed down quite a bit, but about a week later (this morning) everything hit the fan again. My ammonia levels remained high, but I assumed it was alright since I had added Ammo-Lock too and the bottle said that even though the levels may read high, the ammonia had been converted to a non-toxic form. Well.. something went wrong, and my other fish started acting funny today too.

Long story short, I've moved the fish to a friend's tank and they seem to be doing a lot better. I did a >50% water change in my tank with conditioned tap water and the ammonia levels are STILL high. This is where I'm starting to pull out my hair. Why would the levels still be high when there's absolutely no dead plant matter, I vacuumed the gravel, and I did such a huge water change?

Part of my problem, I think, was that I used pure distilled water when doing my original waterchanges on recommendation from a PetSmart employee. Yeah, I read up on it, and apparently using only distilled water is baaaaaaaad. But why would my ammonia levels stay so high even when there's nothing that could concievably be causing it?

Could the problem be stemming from my Bio-Wheel? I mean, the Bio-Wheels are supposed to REMOVE ammonia. I've replaced the filter cartridge itself twice since this problem started, the second time being this morning, but my Bio-Wheel has been there all the time since I don't want to have to re-cycle my tank.

All my other levels are perfectly fine. My PH is a little bit on the high side, but that's due to the natural levels of the tap water more than anything.

I just started out with the fish hobby back in September, and I've made pretty much every boneheaded mistake there is to be made. The way I look at it, every mistake I make is something learned, but this is still stressing me out an awful lot.

Anyone know what exactly is causing this, and how I can go about fixing it? I'm tempted to just remove *everything* and start from scratch and add one element of the tank back at a time, testing thoroughly after each part is reintroduced, but that would take a huge amount of time, time that I don't have as a college student.

Thanks in advance for the help!

Richard
Thu, 2nd Feb 2006, 12:45 AM
Are you using zeolite and adding salt or water softener water?

Ammo-lock, water changes etc. aren't what you need. Get some live bacteria, bio spira or tlc are good ones.

adamcaso
Thu, 2nd Feb 2006, 12:58 AM
I've added Stress-Zyme and the recommended dosage of aquarium salt... the bacteria in the Stress-Zyme should be what I need, right? I know my biological filter needs a good kick in the pants to get started back up again, but I can't imagine what could cause ammonia to just appear so fast in new water.

Will Bio-Spira do something that Stress-Zyme won't? I'll go out and get some tomorrow if it will.

Also - zeolite? I've never heard of that, but I just looked it up. Is that necessary to get, and if it is, how would I go about adding it to my filter? I'm using a Penguin Bio-Wheel filter, so I'm not sure that it's something I could just add in.

GaryP
Thu, 2nd Feb 2006, 12:59 AM
First off, welcome to MAAST. Yes we occasionally answer fresh water questions here too.

Remember that the main source of ammonia is fish waste. The plant matter may have contributed to it somewhat. Richard's suggestion is excellent. The simple matter is that you are producing ammonia faster then your system is capable of processing it. There are only two solutions. The first is to reduce your bioload, in other words the amount of fish producing waste. It sounds like you did very well on this one. The other thing is to increase the capability of your system to process ammonia. I think that was Richard's point. By beefing up the bacterial cultures in your tank, you are going to increase the ability of your system to process waste.

The plant should have helped reduce the ammonia. However, you may not have enough light or some other factor for it to do well. I suspect that the distilled water may have been an issue with the plant. They need the minerals in the water. In addition, fresh water fish need a certain level of minerals in the water. Tap water is fine for that.

I suspect that the cause of the problem was 1. not having a fully mature and cycled system, 2. over stocking, & 3. adding fish to fast for your system to catch up to the increase in bioload.

We rarely learn a lot in this hobby from our successes. Unfortunately, the failures provide more valuable lessons. I will say that you sound like you were on top of the situation and did a couple of things that saved your fish. I'd say that put you ahead of most of the newbies to the hobby that think all they have to do is throw some food at their fish every couple of days.

Richard
Thu, 2nd Feb 2006, 02:16 AM
Stress zyme is not a very good product IMO. It is not a live bacteria. Enzymes only work once, bacteria keep on working.

Zeolite removes ammonia in freshwater. You could use it to lower the ammonia but it would be better to just add the bacteria and it will come down and stay down.

TLC is much cheaper than biospira. Both work equally well.

adamcaso
Sat, 4th Feb 2006, 06:53 PM
Ok, this is seriously confusing me.

I went out and bought some Bio-Spira (a 30-gallon bag, the smallest they had) and added it to my tank on Friday morning. It is now Saturday evening and I've seen absolutely no change in the ammonia levels. They're still reading over 8.0ppm.

I have no clue what could be the problem. I've vacuumed the gravel, there are no fish in the tank, no dead plants (only two small plants), and the filter with Bio-Wheel is running smoothly. I did a 50% waterchange the day before I put in the Bio-Spira.

Anyone have any clue as to what could possibly be causing this?

gjuarez
Sat, 4th Feb 2006, 08:27 PM
Hmm... Have you tried using another test kit? Maybe a different brand. With everything that you have done I dont see why you should have any amonia in your tank. i would try another test kit just to make sure.

adamcaso
Sat, 4th Feb 2006, 08:34 PM
I tested the tapwater after I conditioned it and the kit reads zero ammonia. I also tested the tank down the hall and it reads .25ppm, so I'm fairly certain it's not the test kit.

This is so strange, I have no clue why this is happening...

adamcaso
Sun, 5th Feb 2006, 10:33 PM
Well, I did a 100% waterchange this morning and everything seems to have magically fixed itself. I'll move my fish back in a few days, assuming the levels stay stable. What a bizarre problem...

Thanks for the help, everyone!

loans_n_fishes
Wed, 15th Feb 2006, 05:09 PM
Adam,

It sounds like you have found an answer to your problem, but I had a very similar problem when I first started out with freshwater. It seems I was keeping my tank "too clean". I was vacuuming out the good bacteria and washing them off the filter. Therefore, there were not enough bacteria to keep the tank balanced. My tank kept going through cycle after cycle...

What helped me:

1. Biospira is a miracle worker...saved all of my fish!

2. Live plants (hardy ones like java fern, water sprite, even household ivy cuttings--just make sure there are no pesticides)

3. Less water changes. Water changes are important, but smaller water changes with minimal vacuuming of the gravel worked best for me.

4. Washing the filter media in the "old" water. When I do a water change, I rinse the filter media in the water I just took out of the tank. This way I don't kill the bacteria with chlorine.

5. Using a water conditioner that removes chlorine/chloramine and ammonia in newly added water.

Ever since I started doing these steps, my tanks have been healthy and happy...going on 4 years.

Hope you have as much fun in this hobby as I do! :) Take care!