I bought a some feeder guppies for my African Clawed Frogs, and one of the uneaten guppies has begun showing signs of Velvet. I've already pulled that guppy from the tank, but I'm unsure whether it was in the first or second stage. In the event that it has spread to the water column, is it possible for the frogs to catch it? And how would you treat it in ACF, as I've heard standard medicine isn't good for them.