Here are some pics from May 8th of my Krib's then recent spawn (none hatched) and some of the algae in my tank that drives me nuts haha.
The algae is found right where the HOB filter outflow and the CO2 diffuser (elite mini filter) flow meets, so this is very likely BBA of some form , or perhaps staghorn, but it stays totally localized to the leaves in this area. And the clumpy stuff clinging to it is soil particles by the way, not algae.