Freshwater Ray + Nitrite Spike

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K80fsu

Feeder Fish
MFK Member
Oct 23, 2015
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Hey all,

Hoping for some advice here before our LFS opens up in a few hours...

I have a 55 gallon tank with a Reticulated (Teacup) Freshwater Ray. We've had her for nearly exactly 7 years, in the same tank. Our only other "constant" fish have been 2 Yoyo Loaches, 2 dwarf plecos (one Clown, one Bristlenose) and a rasbora. We had other fish over the years, tetras, gouramis, rams, but she was just eating them all.

It's set up with a Eheim Eco 60, and we have a bubble strip on a whisper motor in there too. Substrate is sand, which leads me to my issue.

My mom is shutting her tank down this summer so we wanted to take some of her top-dwellers that would likely be too big for Ray (we call her Taco) to eat. We figured we would take her plants first, get those established (Taco has never done well with plants, always uprooting them, so we haven't had any for a while), but we should top up the sand first to make sure they stay down. We've been low on sand for a while throughout water changes (but, we have introduced new sand in the past 3 or 4 times).

We bought Freshwater friendly sand, that was wet-ish in the bag (we were told it had what it needed in it to add to the tank). We soaked it for about a day to prevent black water, and added it as we normally would have.

The problems started with a pleco dying. They were older from a previous tank (about 10 years old), so we thought perhaps it was his time. Then Taco started to not eat... We were feeding her 3-4 bloodworm cubes a night, the loaches would eat them too and the plecos got 2 small tabs. We've always done weekly 25% water changes, which we didn't change. We tested the water, ammonia and nitrites were 0 ppm, but nitrates were maxed out. Our "fish guy" said to keep just doing our water changes and testing, adding emergency levels Prime to the water (and our usual salt doses we do weekly), but nitrates aren't the worst.

She would end up eating 1 cube every 3 or 4 days for about a week. Then a loach died. We tested again, same results. Still eating the same, very little. Then the other loach died on Sunday. We took our water into the LFS to see if we were missing something. They tested it, came up with 0.6-0.8 ppm nitrites this time. They gave me their brand of "Tank Buster" (which, it's worth noting this guy is really our local expert, he's helped my mom countless times) and said Taco should be fine, she's just stressed because of the levels. Do another 25% change and use the whole bottle of this stuff, you can't overdose. We did just that.

This morning, we wake up to find Taco on her back. We thought she was gone... My husband went to scoop her out only to find her flip herself over! We were (semi) relieved. We just did a 25% change, adding Prime. We're waiting for the LFS to open to get more Tank Buster.

Any thoughts in the meantime? Sorry for the length, didn't want to leave anything out.
 
If it was me I'd go with daily 90% waterchanges and get live food (black worms or ghost shrimp) until she starts eating again.

I would also stop adding tankmates that could be stressing her out more.
 
If it was me I'd go with daily 90% waterchanges and get live food (black worms or ghost shrimp) until she starts eating again.

I would also stop adding tankmates that could be stressing her out more.

Noted, thank you! When you say 90%, should we be doing 30% 3 times a day, as opposed to one (or one and half) big change?

We've never fed her live food, but it's worth a shot.

We haven't added anything yet to be clear...sorry about that. We added the sand, then plants about a week later. Then we started getting the deaths so we knew not to add any fish. She hasn't had new tank mates in the last year or two (it was really getting pointless at the rate she was eating them, haha).

Thanks again,
-Katie
 
Noted, thank you! When you say 90%, should we be doing 30% 3 times a day, as opposed to one (or one and half) big change?

We've never fed her live food, but it's worth a shot.

We haven't added anything yet to be clear...sorry about that. We added the sand, then plants about a week later. Then we started getting the deaths so we knew not to add any fish. She hasn't had new tank mates in the last year or two (it was really getting pointless at the rate she was eating them, haha).

Thanks again,
-Katie
90% all at once. When I had an issue with my male motoro I did large daily waterchanges and kept offering food and he eventually came around.

I'd keep the lights off in the tank too.
 
90% all at once. When I had an issue with my male motoro I did large daily waterchanges and kept offering food and he eventually came around.

I'd keep the lights off in the tank too.

Thanks - yes, I figured on the lights and have kept them off. She's starting to move around a bit.

I called my fish expert friend, he's advised that I do the 90% daily water changes, while simultaneously cycling a temporary tank for 1-2 weeks (until it's proper). He thinks the sand addition has crashed my water quality.

Once I get the temporary tank cycled, move her to that and cycle the regular tank. It's a lot of work, but absolutely worth it.

Or, he suggested asking my usual pet store to take her while we cycle the regular tank - we spend ~$150/week there with all of the other animals we have, and have been going there for nearly 10 years. They know us pretty well, so would likely be willing. I'm just not sure I want to stress her out by moving her. She usually isn't stressed by water changes, she'll come up and rub against our arm, rarely burying herself, so I think the extra work for us, less stress for her is the way to go.

Thanks for the help.
 
Thanks - yes, I figured on the lights and have kept them off. She's starting to move around a bit.

I called my fish expert friend, he's advised that I do the 90% daily water changes, while simultaneously cycling a temporary tank for 1-2 weeks (until it's proper). He thinks the sand addition has crashed my water quality.

Once I get the temporary tank cycled, move her to that and cycle the regular tank. It's a lot of work, but absolutely worth it.

Or, he suggested asking my usual pet store to take her while we cycle the regular tank - we spend ~$150/week there with all of the other animals we have, and have been going there for nearly 10 years. They know us pretty well, so would likely be willing. I'm just not sure I want to stress her out by moving her. She usually isn't stressed by water changes, she'll come up and rub against our arm, rarely burying herself, so I think the extra work for us, less stress for her is the way to go.

Thanks for the help.
I wouldn't move her if possible. If you do go with seperating her I'd get bottled bacteria and cycled media that way you don't have to cycle her. I'd think that she'd be better off in the largest tank possible with large waterchanges and sand to help her feel more comfortable.

Do you have a link for what tankbuster is?
 
I wouldn't move her if possible. If you do go with seperating her I'd get bottled bacteria and cycled media that way you don't have to cycle her. I'd think that she'd be better off in the largest tank possible with large waterchanges and sand to help her feel more comfortable.

Do you have a link for what tankbuster is?
She stopped breathing an hour ago or so, she's passed... Thank you for your help, though.
 
She stopped breathing an hour ago or so, she's passed... Thank you for your help, though.
That's too bad. Sorry for your loss.

How are the other fish?
 
That's too bad. Sorry for your loss.

How are the other fish?
We're both really devastated... I wish we could have done more.

There's only a clown place left at this point, he seems okay. We're going to put him in our Turtle tank for now.
 
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