Sad day...

  • We are currently upgrading MFK. thanks! -neo
sorry for the loss, I think my sting rays are going to die too, I just got them and there not eating. I feed them this plec algea sinking pellets but I dont think It part of thier diet. anyways, will let you know what happens.
 
Sorry for your lost.

Sudden death is common for wild caught fresh water fishes. If the water quality and stress factors are well taken care, the only 2 possibilities behind it are;

1. Internal Parasites
2. Internal bacterial infections.
 
Ammonia = 0ppm
nitrite = 0ppm
nitrate = <10ppm
pH = 6.4, pretty steady. No more than a .1 increase/decrease in any 24 hour period (not tested currently, but this was about 2 weeks ago that I did test). I just got a live pH meter that I was going to set up on the tank as soon as I had tested it. It will be set up on the new ray tank.

I think the water is pretty good, since I have 2 pairs of angels that are spawning like clockwork every 10-12 days.

With all the live plants in there, there is very little nitrates at all. I don't worry about uneaten food on the sand, because I have 9 cory's that clean up anything, and anything they might miss, the gazillion Malaysian trumpet snails living in the sand clean up overnight. The sand is well aerated from the snails and plant roots growing through it, so I'm almost certain there aren't any dead spots in it.

No outside contaminants, because every other fish in the tank is fine. Maybe something that only affects scaleless fish, except my large dragon goby is fine as well.

The male never really put on weight like I was expecting him to, or like the female did. I was worried he may have had internal parasites, and so I was getting ready to ask you guys what to dose the tank with, or whether to separate him to a qt tank and dose him. The female was completely unexpected, as she was fat, active, and had a voracious appetite until the male died. No signs of disk curl on her at all, she just was laying in a normal position dead. No signs of injury or disease on either of them, no obvious smell when I pulled them out of the tank.

I'm testing a new 125g tank that I just re-siliconed right now. Once it tests ok, I'm going to build a stand and get it set up and running. It will be a dedicated ray-only tank, at least until I have healthy rays established and feeding well and healthy. I will probably initially keep it substrate free, so I can tell they're eating and see if there are any parasites in the tank, but may add some 3m color quartz black t-grade at a later time if I feel like it. It's going to have a 30g tank as a sump, with about half the biomedia taken from the sump on my other 125g tank.

Any opinions on the new set up? I may have some floating hornwort just to add some cover and shaded area's in the tank, and I plan on having some large rounded stones and possibly some smooth driftwood as well.
 
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