Yellow/Gold worm in breeding/fry tank?
Tank size: 5.5 gallon (filled about 60%)
Filtration: DIY sponge filter
Water: About 25% cycled, 75% fresh, give or take 5%
Species: 2 female Zebra Danios, 1 female Leopard Danio, and 2 male Leopard Danios. Some baby snails came with plants.
Substrate: N/A - bare bottom
Plants: Clump of java moss and scraps of hornwort that was caught in the moss
Other: For the spawn and the night before there was an egg grate made from plastic canvas and acrylic yarn that covered the whole bottom and sides. Three 4 inch tubes of pvc
The fish spawned Easter morning. I started seeing a couple fry wiggling on the bottom Tuesday night and last night I was looking at them closely and noticed two yellow and gold worms. One of the worms was digging through an egg! Although, I think the egg was unfertilized or taken over by fungus (most fungus was removed by pipet). The other worm was hanging out on some hornwort. The worms were about the same color as Leopard danios. They were about the same thickness as the fry but about twice as long. Today there are some fry swimming for short periods and lots laying around but I cant find the worms. Anyone know what these worms are and what (if anything) should be done?
It sounds like you might have Planaria worms to me. . . my understanding is that these aren't typically a threat to larger fish, but they will attack eggs (as you've seen) and the fry if they can get them. Generally, they show up when the tanks are overfed and/or the substrate is not cleaned very well - both are easy to do in a fry tank! Make a point to keep things clean as possible, and your little worms should go. There are chemical treatments, but I don't know anything about them. . . hope that helps!
Saw the with again today and it seems to hang mostly on pieces of hornwort. Maybe it rode over there on that?
Maybe a banana worm mutated for aquatic conditions and is seeking revenge!!! :-)
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Heehee, one can only guess where it may have come from when a setup is built from multiple tanks! The good news is that you're probably not going to see any more of them, provided you keep your own tank clean :)
Ooo that does read funny. Breeders = parent fish, they were all my tanks.
The situation was I had a ten gallon set up with the marbled crayfish and decided to condition the parent danios in then one of the crayfish spawned so I delayed the gravel cleanings in fear of sucking up babies. I also planned on replacing the 10 gallon with three 5 gallons, which I did eventually. So I delayed water changes for a few more days thinking whats the point if I'm just going to remove it tomorrow, you know haha. There was a large bunch of hornwort on the bottom of the tank that I placed in a sterlite container with all my java moss in when I was taking down the 10 gallon then I placed the java moss in the breeding 5.5 gallon once it was set up. So it could have came with the plants or the small amount of water I transferred with the fish. Who knows, I see dozens of fry clinging to various surfaces so I guess the worms aren't doing too much damage, thanks for the help.
LOL! Sounds like you've got a case of MTS - and I'm not talking about the snails ;) Glad the little uns are well, though :)
Now I've found some more little critters elsewhere! So you know how I talked about taking down the 10 gal and replacing it with three 5.5's? Well one of them was filled with some blasting abrasive, annacharis, hornwort, and java moss. I am planning on putting in most of my cherry shrimp and a betta. But today I was looking at it and noticed a baby danio! Now there is no way I transferred one from the fry tank. It must have rode over from the 10 gallon on the hornwort. But before I put the hornwort in the 5.5 gallon I set it in a sterlite tub with a bunch of java moss in it. So I thought to check that tub for more fry and found these little brown creatures swimming around the top of the water. They are round bodied with a tail like danio fry but about half the size in length. Any ideas on what this could be?
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