Black Diamond Hybrid Help

[AncientFishArk]

Good morning [Where I am],

Just over the last week I had received 2 Black Diamond Hybrids. They were both skinny when they got to me and the ones bag was really messy. I can only assume the plane ride was not a gentle one. Each ray is roughly 5 to 6 inches round and I have them in a 46 gallon quarantine tank. There are 2, 100 gallon sponge filters with lots of air moving through them. I have been keeping up on 10 to 15% water changes daily. I also have a sterilizer on the tank as well in case of parasites.

I'm not new to rays however, here's the issue. One of the rays have taken off and no issues, eating, gaining weight. The second ray, the one that had the messy bag, is eating very little if not at all. I have only seen her eat once last Thursday, March 17th. I offer a load of different foods. She sometimes mouths food but again haven't seen her eat. She is extremally skinny and now she has her tail. I'm assuming it was when she was with other stingrays in a smaller tank because she had the tail issue before she got to me. Just has looked worse then before. Her color is looking good but I'm just wondering if anyone has any advice on getting her to eat and suggestions.
[As far as getting a bigger tank for quarantine, that's not a option due to space restrictions. Until they are healthy I cant move them to the big tanks, 120 or 260. I know eventually they will need a bigger tank then that, when I get into my house I'm building a 500 to 1000 gallon. Just working on prices. also just adding this before anyone jumps on that wagon]

I added pictures, sorry they aren't the best. Any suggestions and info is appreciated.

 

[Caveden]

Is the rays disk curling slightly? That isn’t a good sign. There is a fungal infection occurring at the tail area. Exact same thing happened to mine, and sadly mine did not make it. You may still have some time to make things better kno4te Matteus tlindsey

 

[AncientFishArk]

Yup. She came like that. As I said, I think all this is from the tank she came from and the shipping to me. The tank parameters are in good shape. I can retest and post the stats however with the other one in the tank doing great. I think its just doing what i can you know. Any ideas for the fungal infection? I added aquarium salt but never really handled a fungal infection.

 

[Stingray Biogenetics]

A 46 gallon for 2 rays.. way too small of water volume, they need a bigger tank to help with dilution etc. to keep things more stable.
Only filtered by 2 sponge filters.. they need more filtration, rays produce massive amounts of ammonia.
10-15% water change daily on a 46 gallon with 2 rays.. on a tank that size with only that as filtration no where near enough water changes, they probably need 50%-90% daily in order to survive in a system that small. Your 120 gallon tank would be a way better grow out option at this point.
As for why one ray is doing better then the other. The one that came in a dirty bag would have ammonia burn on her spiracles etc. Everytime the water quality fluctuates (which I bet it is in a tank that small with only sponge filters) it’s going to affect her because her immune system is more vulnerable right now. That ray needs time to heal in pristine water quality, this is why it’s getting worse because your water parameters are fluctuating.

 

[tlindsey]

Only filtered by 2 sponge filters.. they need more filtration, rays produce massive amounts of ammonia.
10-15% water change daily on a 46 gallon with 2 rays.. on a tank that size with only that as filtration no where near enough water changes, they probably need 50%-90% daily in order to survive in a system that small. Your 120 gallon tank would be a way better grow out option at this point

Totally agree

 

[AncientFishArk]

The other part of filtration was cut out of the original message. I have a great cycled filter on the tank rated for 125 gallons that was used on my 120 gallon for years. [Before anyone starts of water flow being to high, the flow is adjusted on the intake of the filter so it isn't pushing as much water through. I've used this filter again for years until I got the 260 gallon and had to get a different filter for it] Obviously new carbon/ filter media etc. Bio is cycled and the filter has the UV Built in. As far as the stingray that I was questioning about, she just died 20 min ago. I've contacted the seller since again, she was super skinny and after a day not eating on arrival. I have a feeling that this was more then just me quarantining them for a while in a 46 gallon. At the end of the day, I have a feeling she wasn't healthy at the beginning which is unfortunate.

Again water quality is good. Tested now [0- ammonia, .25-Nitrite, between 0 and 5.0ppm Nitrate].

Moving forward, does anyone have advice on fungal infections? Primarily with rays.

I apologize if I sounded defensive in any of this. I am not new to rays so I knew what some things were going to be said. I understand why those of you said it because I would have as well to people with that information given, sorry about the missing part. 46 gallon in my experience should be okay for a quarantine tank. [Not arguing with anyone, just based off my experiences] As far as the quarantining I was going to do 3 weeks until they came in and saw the condition they were in. Now that the one that was rough has passed, I'll give the other one that's doing fantastic 2 to 3 weeks and she'll go into the 120 that's running downstairs.

Will post more pictures when I get back home from work.

 

[kno4te]

Clean water and salt 1 tsp per g. Increase your water changes. Make sure the rays are eating.

 

[Stingray Biogenetics]

0.25 nitrite is not “good water”. I’d fix the underlying cause before masking the symptoms…
•Quoted from Miles “If you have traces of nitrites in your tank, it is a sign that you do not have enough nitrifying bacteria to handle the amount of ammonia being released into the tank.” Aka you don’t have enough bio.
•Nitrite poisoning can also lead to brown blood disease in rays.
•I’m just going to leave it at this and what I previously said, wishing you all the best!

 

[Caveden]

Not really sure what medications are good for helping fungal infections. If I’m not wrong Rocksor knows a lot of medications maybe he can help