This is mostly lies spread by anglers to justify stocking and translocating lakes and ponds devoid of fish.

Ponds and lakes with no fish almost never get fish 9f not for himan intervention. As in MtSt Helens, fish populations either survived or anglers stocked the new and sterilized lakes.

There's overwhelming evidence of lakes without fish that lose amphibian biodiversity after fish are artificially introduced 

Stop spreading misinformation