Thats weird that they're not out and about you have alot of fish in there, is the tank in a weird position like in sunlight or anything?
Electra's would outgrow your tank they get big, I would have thought the cherry barbs would have done the trick are they out and about and happy?
Sorry to hear about the WCMM's also, glad to hear the baenshi have breed breeding, are you going to strip or leave them be? Has the male coloured up at all yet?