Not sure if this is the right forum but it's about food anyway. I have a new ornamental pond that I've added 10 goldfish to & am feeding them a variety of things based on my Google research. One of their favorite things is bloodworms which I've been getting frozen & feeding.

I went to change the filter in one of my pumps today & discovered that all 3 layers of filters were squirming with live bloodworms. Hundreds of them. ??? So they came back to life after being frozen & reproduced? I dipped the filters in the pond & the fish as well as my baby bullfrog had a feeding frenzy.

It's interesting but sorta disgusting. lol Wondering if I can start growing my own from frozen. Sure would be cheaper. Any ideas?

TIA.

Very likely the worm eggs came in with the frozen food. Eggs hatched in the pond, the filter or migrated to the filter media.

Thanks, that makes sense. Guess I won't be trying to actually raise any then.

Not sure my opinion means much but I do have a koi pond with a very large pressure filter. I only have to clean it 3 or 4 times a year but when I do it is full of little red worms in all of the sponges. I looked it up once upon a time and if I remember right it is completely harmless. Probably due to all the stuff my daughter and I throw in there. We have an albino channel cat that is 9 years old, 1 lone pumpkinseed sunfish, 1 koi that is also 9 years old, numerous goldfish of all the fancy and not so fancy varieties, 1 turtle, and about 15 tilapia. When we harvest rabbits and quail, we throw the hearts and pieces of lungs in to the turtle and catfish.

Thanks! Do you ever feed the fish bloodworms?