I'm new to keeping ADFs and just got my firsts two days ago (a pair of females). I keep them in a 10 gallon tank with a male betta. The betta gets along with frogs so far and either ignores them or flees when they get too close (no chasing, bullying, nibbling, etc.), but I've been watching them closely since they're all still new to each other. The tank has lots of hiding spots, a light, a heater, and it's been dechlorinated and cycled properly, but one of the frogs acts a lot different than the other one. I know from keeping bettas that fish can have a lot of different personalities and preferences, but the frog in question isn't acting like ADFs are supposed to, if the different forums and websites online are to be believed. She hides in one place for hours on end--staying in much smaller, tighter spaces than the other one--and rarely moves. When she does, she crawls very slowly. Her coloring is also paler than the other, but I don't know if that's natural or because she's ill. She also doesn't eat, which I've heard is common when ADFs are introduced to new habitats. She isn't showing any other signs of a fungal infection or red leg. Is she sick? Could she have been underfed in the pet store since she was kept in a tank with other fish? I'm worried because the other frog is very active and has been eating, but this one isn't. I've taken her out of the 10 gallon in case she is sick and contagious and put her in a 1.5g.