Martin steele
Member
Hi all I have been feeding my fish in my 60 litre tank on some tubifex. The other day I noticed a small colony of tubifex living in the substrate layer.Tonight I noticed free swimming worms in my tank to the delight of the zebra danios then I noticed thousands of tiny creatures that kind of resembled microworms.?? Do tubifex go free swimming on occasion and what are the tiny worm like structures I have seen is it some kind of breeding ritual or just a strange coincidence.