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Plant Doctor Archive
Water Gardens — Tubifex worms

I
HAVE a lot of what appear to be red worms living in the sludge at
the bottom of my pond. Are these harmful and, if so, what can I
do?
THESE are most likely Tubifex
worms. They are actually harmless — in fact, they are very good
fish food, as keepers of tropical fish will tell you.
However, as they grow in organic sludge and feed on what you and I would call sewage, they tend to indicate that it is time for a clean out.
Winter is the perfect time for this unpleasant activity and as an added bonus, all the murky sludge you remove is great for the compost heap.
Weekend Gardener, Issue 99, 2002, Page 20

