OK, Here's the Bangai culture manual. The guppy stuff is on page 11.
http://www.raingarden.us/banggaimanual.pdf
Here is what they said about the fatty acid profile of guppies:
"Overall, the fatty acid profile of the guppy appears to be appropriate with respect to its fatty acid profile for marine fish in general. This is not surprising as guppies are thought to have evolved in a brackish water environment."
This suggests, but does not explicitly state that guppies have a higher EPA and DHA content than fresh water fish.
Note that PE brand frozen mysis are a fresh water mysis, but have elevated EPA and DHA as well.
Fred
http://www.raingarden.us/banggaimanual.pdf
Here is what they said about the fatty acid profile of guppies:
"Overall, the fatty acid profile of the guppy appears to be appropriate with respect to its fatty acid profile for marine fish in general. This is not surprising as guppies are thought to have evolved in a brackish water environment."
This suggests, but does not explicitly state that guppies have a higher EPA and DHA content than fresh water fish.
Note that PE brand frozen mysis are a fresh water mysis, but have elevated EPA and DHA as well.
Fred