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In serious need of help. 4.0 ammonia 6.0 ph

4.2K views 12 replies 5 participants last post by  mcb5522  
#1 ·
My brothers fish tank is in dire need of help. He has neglected it and i took it upon myself to check it out. I used my test kit and only did amonnia and ph before i came to write this, i am doing nitrite and nitrate now. I am going to do a 50% water cahnge now after i quickly get results for other things. It is a 55 gallon cichlid tank. Aqua clear 100 HOB filter, temp is 79 degrees. brb
 
#2 ·
With that much ammonia you are going to have a tough time. I am honestly surprised the fish are alive. Just keep changing the water and vacuuming the tank out any waste. I know organic material decomposing releases acid, that is probably why the PH is so low. You may want to get a bag of crushed coral and put it in the filter to bring up the PH. Unfortunately there is no quick fix, just large daily water changes.
 
#3 ·
HOpefully if your lucky that could be ammonium and not ammonia. Both show up on test kits unless you have a kit that shows only ammonia nh3. most dedect nh4.

This may explain why the fish are still alive. as nh4 is not toxic.

Good luck
 
#4 ·
HOpefully if your lucky that could be ammonium and not ammonia. Both show up on test kits unless you have a kit that shows only ammonia nh3. most dedect nh4.

This may explain why the fish are still alive. as nh4 is not toxic.

Good luck
The problem he will have is that nh4 turns back into nh3 once the ph goes over 7.0, if I am not mistaken.
 
#5 ·
doubt its ammonium, no plants to even change the stuff into anything, the nitrite was .25 and nitrate was 100

there were these big shells in the tank and i found a HUGE amount of old food in both of them, like a fist full

i know he loses a fish a month but he also overstocked the tank. I was asked to help quarantine a fish he had that was getting nipped and decided to go the extra mile after i saw a fish dead. Ive never seen ammonia like that, i didnt think the fish could be alive either. How should my water change schedule go. Should i do two today or one
 
#6 ·
I have changed 100% of the water in a tank in one day without any problems. I would do at least 50-75% a day until the numbers stabilize. It sounds like once you get all the organic waste out of the tank things should stabilize.
 
#8 ·
Water changes, water changes, water changes. Your future is looking very wet. I can't believe anything is still alive with those numbers.

Good luck.
 
#11 ·
My brother doesnt live with me, he has it in his room and does water changes each week. I know he overfeeds his fish but I never see any of it. I found alot of extra food when I took out his decorations, fake plants and shells. There was a lot. He also over stocks but his fish seem generally happy, active and heh as minimal amounts of losses. Especially recently. He just doesnt test his water. I just did another test after a 50 percent change today. It looks to be at 1.0 right now. I am debating whether or not to do another water change later. Thats three 50% changes so far. geez this thing.
 
#12 ·
I hope this is not too late to help. You could have a major issue here and lose the fish, as I'll explain.

First, in acidic water (pH below 7) ammonia always changes into ammonium immediately, always. Plants have nothing to do with this. Ammonium is harmless to fish. So as long as the pH remains acidic, fish are fine (with respect to the ammonia/ammonium issue only).

If your tap water is basic, pH above 7, you must do very small water changes to restore the tank pH to where it should be for the fish. Very small. If you do a major water change and the tank pH rises above 7, as someone mentioned, the ammonium immediately changes back to ammonia, and bang go the fish. Using a water conditioner that detoxifies ammonia will help, Prime is one but several do; they work the same way, by changing ammonia to ammonium. But this can have its problem too, because Prime and other conditioners only work for 24-48 hours, then the ammonia returns if the bacteria has not multiplied sufficient to handle it.

Nitrifying bacteria also die off in acidic water. Some authors suggest 6.4 is the pH below which nitrosomonas bacteria cannot multiply, some suggest 6 as the pH below which they will simply die.

There is also the issue of major shock from too quick a pH adjustment, but that is secondary to the ammonia issue.

And members were correct on the ammonia/ammonium reading the same on test kits; most of those we use, like the API, do not distinguish between the two forms and will show "ammonia" whether it be ammonia or ammonium.

Whenever a tank has reached this state of neglect, bringing it back must be done slowly.
 
#13 ·
Thanks a lot Byron. I am taking chemistry at the moment and this is exactly the stuff Im dealing with to which is sad because I see now I cant apply it in real life lol. Maybe if I remembered ammonium doesnt affect the fish, I would have. I read to much info and cant keep up with some of it. I am actually on my way to check back on the tank. The last I checked, the ammonia was down to 1.0 but because I didnt have enough time, I did not check the Ph or anything else. I cant update on those factors until I get over there and check it. I also did not check his tap water parameters. Dumb move by me but I was just trying to get a water change done. Most of his fish were not greatly affected but I had seen he had one African cichlid dead and an oscar with some raw spots and half a left fin. I took the oscar and put him in my quarantine tank at my house because I didnt think he had a healthy environment in that tank. So to recap: Day1) I did two 50% water changes. One in the afternoon and one in the evening. I feel this is a mistake since after seeing what Byron said, I could have done something bad. parameters were 2.0 ppm for ammonia. I cleaned out a hell of a lot of food, washed the decorations in a bathtub (found more food), washed plants with food stuck in them, and finally rearranged the tank to give it new life, more hiding spots and Day2) A 25% water change, parameters were 1.0 ammonia. So Ill update later about how today goes and see if I am any closer to fixing this tank.