I live in Missouri . close to St.LouisNo idea, but probably some sort of insect larval stage..... Where do you live? Maybe your location could give us a clue.
Do they appear to have legs? Is the dark end the "head"?
Thank you so much ! you have put my mind at ease.Every year what visitors do well or leave changes in my pond, more likely as not, they found something they like to eat and their eating it means less for your filters to clean out. If your fish are doing well and not sick or injured my guess is it's OKay. If they get too populated away, something that likes to eat them will probably come come along if your fish don't find them.
OBTW welcome.
Thand you so much. I feel much betterI am totally in agreement with Meyer on this point , thing is @Aimee our filters and ponds will always support life , look at it on a plus it means everything is good ith nothing at all to worry about .
Dave
Thank you. I feel much better.They should be of no real concern.
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