Q: I collect water from my roof in a rain barrel. Is it OK to use this water to top off my 450-gallon small pond?

A: There are only a few things I would question. Water temperature is important to cold-blooded animals, so if there is a large difference in water temperature and a large amount of water used, it could be a shock, but as long as it is small amounts of water to top off the pond, I don't see a problem there.

If the barrel has any leaves or debris settled into it, bact ...

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