Insufficient Filtration

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pH could be entirely relevant. You're asking for help, why not answer a simple question?

The pad should be in the drip tray not on top of the balls - if it's on top of the balls, dirt can easily cause the water to follow only a few specific paths off of the pad and not spread correctly on the balls at all. Especially in the case of the type of pad you're using. I strongly suspect removing that white batting and putting some proper flat blue/white aquarium prefilter in the bottom of the drip tray will solve your problem.

I don't understand what you mean putting the pad in the drip tray... I don't think you know what type of wet dry filter I have.
 
You're still not answering the pH question. Do you want help or not?

Apparently you think the people who are trying to help you are idiots and don't know what they're talking about. I have a wet/dry very much like that one. Here, I'll even go to the trouble of taking a picture where you can just about make out the blue/white padding lining the bottom of the drip tray. The water flowing out the bottom of the tray flows evently through all the holes and directly onto the biomedia (in my case scrubbies on top of bioballs). Your water is more than likely hitting that dirty dense white pad and flowing off the edges and mostly not onto the balls.

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You're still not answering the pH question. Do you want help or not?

Apparently you think the people who are trying to help you are idiots and don't know what they're talking about. I have a wet/dry very much like that one. Here, I'll even go to the trouble of taking a picture where you can just about make out the blue/white padding lining the bottom of the drip tray. The water flowing out the bottom of the tray flows evently through all the holes and directly onto the biomedia (in my case scrubbies on top of bioballs). Your water is more than likely hitting that dirty dense white pad and flowing off the edges and mostly not onto the balls.

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I dont at all see how the water would flow evenly over the pad if the pad is on top of the overflow tray. This doesn't make any sense to me. This is the way that the guy who custom built this wet dry filter set it up for me. And no i don't think that people answering my question are a bunch of idiots, its just that you are completely contradicting what i was told by the person who build this wet dry filter said to do. And the ph is about 6. And if you were in my position i think you would also be pretty frustrated that you have to solve to problem on the day that your prized ray dies, apposed to a week before hand.
 
There is almost no bacteria function at ph6 plus the fact ammonia is only present at less toxic ammonium. I would think your ph has been fluctuating all over the place so no matter what filter was in ace it would not have made any difference. Really Sorry for the loss of your ray.


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if your ph is about 6 then ammonia didn't kill your ray. ammonia isn't toxic at that ph and you will have no activity from your bb as it is dormant at that ph.
 
There is a limited number of ways ammonia can remain in your tank like that. Fish excretion, source water, over feeding, and/or inadequate biological filtration. All of which were suggested as possible causes and you quickly dismissed each of them.

Besides water changes, what did you do to try to rectify the issue? From what I read, nothing. How are we supposed to help you if you did not try any of the possible solutions.
 
There is a limited number of ways ammonia can remain in your tank like that. Fish excretion, source water, over feeding, and/or inadequate biological filtration. All of which were suggested as possible causes and you quickly dismissed each of them.

Besides water changes, what did you do to try to rectify the issue? From what I read, nothing. How are we supposed to help you if you did not try any of the possible solutions.

I have no idea what your talking about here... Everything that was suggested i did... I added a canister filter as well as added seachem stability. Now what exactly else was suggested that i didn't do?
 
If your pH is 6 now, I'm gonna guess that your source water pH is closer to or even just above 7. pH of 6 with ammonia (ammonium) in the tank won't kill the ray quickly but then you do your water change and the pH will temporarily increase, potentially resulting in the ammonium becoming free ammonia for a period before the pH drops again.

With the pH that low, as others have said, your biological filter isn't functioning at max and may be going completely dormant (and the standard pH test can't measure below 6 so if it's lower your situation is even worse).

A good pH is a stable pH, certainly when you don't understand the consequences of having a low or fluctuating pH. You can add baking soda to help stabilize it but the effect will not last long. Go do some research and learn about KH and pH and their effect on the biological filter and ammonia.

I also still think your filter is set up wrong despite what you were told by the guy that built/set it up. If you want to learn, maybe look up "channeling" as relates to filters, I expect you'll find some info - or just believe me.

I'm (especially) sorry your ray died, I'm sorry I didn't see your thread before (I only read the ray forum) but hopefully you can learn something here so that you'll have success in the future.
 
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