I got 2 new adf yesterday as mine lost his buddy last week. should I quarantine? And I was thinking of getting 3 (tiny tiny) black ones the size of my finger nail from another petstore. Quarantine separate or together with new lot?
Always quarantine frogs, and always quarantine them separately. Two frogs bought at the same time from the same place can be kept together, but frogs purchased from two different places should not. The risk of Chytrid is too great to keep them together.
At a minimum of 3 months. I realize that's a long time, but that's how long it takes for Chytrid to run its full course, and die off (if it is present in a tank). Once the 3 months passes, you know without a doubt that your frogs are clean.
Always be careful when feeding your frogs if they are with other fish. More often than not, the other fish will try to eat the food for the frogs, so they might not get fed. I have that problem every time, so I've had to hand feed mine to guarantee they're eating. Other than that, the only real concern is tank size. You want to make sure you have plenty of room for everyone if you're adding schooling fish.