Just an update, I’ve been active on Field Herp Forums and they’ve answered all my Q’s. The tadpoles turned out to be Spea hammondii (Wstern Spadefoot toads). This was beyond my dreams as these are a threatened species and very hard to find! I’ve only seen them on occasion at the Wild Animal Park while doing field research there. It’s hard to believe that I have 2,000 + in my own tank! Don’t worry about cross-contamination, I’m being as carfull as CRES to keep these guys away from chitrid. The white ones that I mentioned turned out to be the first recored albino hammondii! I have a friend of mine who’s a head researcher at SDZICR who’s coming over on Saturday to photgraph and take some of them to include in the next edition of his Field Guide To Amphibians and Reptiles of the San Diego Region.