Re: Vegetable oil a good fish-safe lubrication?

Daniel Morrow wrote:

> So I checked the impeller and sure enough it had
> seized (froze) because I hadn't used it for a long time and so the impeller
> wheel wouldn't move around the rod connected to the end caps. I soaked the
> impeller assembly in vegetable oil

The seizing was probably due to a dried bio-film, so lubrication may not
have been required. In small quantities vegetable oil is certainly not
dangerous to fish, in fact if you read the ingredient list of food
flakes you'll find it there. However, better long term greesing is
achieved with vaselline (petroleum jelly, the purest form you can buy in
a pharmacy), which is safe for fish and even for humans. I use it for
example on the O-rings of canister filters.

.

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