Some of you may have read my post the other day with my agony and pain regarding my discus.

Other than the new additions to the tank, I have been doing some thinking...

The day that I added the new fish to the Discus community tank, I also bought some new Omega One frozen Bloodworms. My discus have always loved the frozen bloodworms as a treat a couple times per week.

About the second or third time I was giving them the bloodworms, I set the package on the end table and was distracted for a few hours. I later realized that I had left the bloodworms there, and they were completely thawed out in the package, making a soupy red fluid. The package was not warm to the touch, but still fully thawed and "goopy". I simply, without thinking, placed the package flat into the freezer to re-freeze them. I broke off a few pieces later that week and fed it to my discus...Shortly after, they started dying.

Could the thawed bloodworms have generated enough excess bacteria to harm the fish?

Yes but other fish would be effected to but the foods.

Well, I lost my nice Chocolate Gourami before any of the Discus, and also two of the new Cardinal Tetras

all after they ate the thawed refrozen food correct?

Man, sounds like such a stretch. ???

Not really Ben, the frozen fish foods are a breeding ground for bacteria the minute they get to thaw point, I left a pouch of em out for about 4 hours and they were water by that point but the stench started and the bag was actually inflating a bit from the bacteria growth.

" Defrosted bloodworms can accumulate bacteria if they've been thawed for some time and then re-frozen, so if you buy frozen ones, make sure they're kept cool and are chillin' in your freezer no more than 1/2 an hour after purchasing."

You can feed them thawed worms just fine, however thats about 5-10 minutes of the frozen chunk sitting in a cup of tank water then given directly to the tank, or put in worm cups and let them thaw in there.

Good to know. I guess it just seems odd to affect that many fish and larger fish at that.

MAN AM I AN IDIOT! I can't believe I was that naive!

Ben, ive seen some fish that are fine with it and some that die within 24 hours of it. Inbred fish die alot faster though and although I dont know what strains the author has I am sure they are very far from wild and/or pure strains.

I feed my fish frozen Blood Worms that are still frozen. Once thawed they become unstable and decompose very fast. I would suspect Corys could have eaten your worms with no problem. They try to eat anything that falls to the bottom and seem to have strong digestive systems (like sharks?).

I forgot some blood worms out of the freezer once. They weren't completely thawed, but just about. I put them back in the freezer and haven't had a problem with anyone eating them and getting sick..... lucky I guess.

__________________
20g Heavily Planted http://www.aquariumforum.com/gallery...00&ppuser=8981
36g Bow Front Heavily Planted http://www.aquariumforum.com/gallery...00&ppuser=8981

They have to be room temp to cause issues.

They were pretty close to room temp....

One of them made it, without visible problems. However, now that he/she is the only discus left, he won't eat. It has been about a week now since he has eaten anything. Is there any way that I can stimulate his appetite? Temp. change??