>> Is a 10 gallon aquarium okay for 2 ACFs?
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For ACF this would be a resounding no. Bare minimum for an ACF is 10 gallons, but 20 or more is better per frog. ADFs are much, much smaller, so you can do a gallon per frog (or small fish).
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Torey
Eugene, Oregon, USA
1.1 Uromastyx geyri (Joe and Arthur)
3.0 Uromastyx dispar maliensis (Tank, Turtle, and Spike)
1.0 Uromastyx ornata (Scuttlebutt)
2.1 Anolis carolinensis (Bowser, Sprocket, and Leeloo)
0.1 African dwarf frog (Sheila)
1.0 Betta splendens (Mr. Miagi)
1.1 Felis domesticus (Roscolux and Jenny)