anyone with a magic cure or answer?

[fkshiu]

It does sound like dinos rather than cyano. One way to be sure is to try a does of the Chemi-Clean (be sure to follow the directions to a "T"!). If it does nothing then you know its dinos.

Not sure if it's the magic bullet you're looking for but a tactic I came across on RC is an extended blackout period for several days.

This is of course in addition to the standard recommendations of feeding/stocking less, employing macro algae/phosphate removers and water changes.