I think you could pass with 14 gallons if you really kept up with water changes. I really don't think 1 gallon will make a difference. Plus the betta, okay. But still, more water changes.
Plus, they are SO active, that is why they need a lot of space, They are very small fish, but swim a lot.
They NEED at least 6 in a shoal, so at least that. I think that would be good.
Gizmo- I found that kind of rude. What do you mean? I don't own Neons. Or 4 cories, or pygmys. I don't want to get in a 'fight'. I just didn't think that was nessecary. How is Splatter? I still think about him all the time. An hey, once I upgrade, I will have a spare 3 gallon... :3
*2 Bettas (for now RIP Ryu) *2 Goldfish *9 Guppies *1 Gourami *2 Chinchillas *2 Budgies *2 Dwarf Frogs *1 Dog *1 Cat *2 Hermit Crabs *2 3gs *1 10g *1 Pond *2 2gs