Yes, and they are a pretty easy egg scatter- but will eat the eggs as fast as they are dropped.
I use a 10g-76-78F-1-female and 2 males with a layer of marbles and java moss for the eggs to fall through to keep them from eating them. I use a mature tank and sponge filter, I make a large water change using cooler water the night before and the first thing in the AM when I turn on the lights they start to spawn, I remove all 3 adults after about 2-3 hours or if they stop spawning.
I have never kept white clouds and I thought they were a cold water fish for some reason, maybe not...they are awesome looking fish and as long as their temp needs fit the Bettas, then yes, also what about fancy guppies-a trio of them would work too and the added fry every month for free betta food...yummy
I have never had an apple snail so I don't know much about them, I know some snails will eat plants, however, lots of them get blamed when what they are doing is eating dead or dieing plant matter.
I had zebra snails and these guys got evicted from my planted tanks because they did eat plants and would cut my hygrophila down like trees.....laffs...cool looking snails and I sure wished they would have worked out...then I later found out that full blood zebra snail don't eat plants but the cross bred one will...so I must have had crossed bred type....dang-it.....
Awesome.....how about dwarf cory cats 5-6, not the regular size ones as they are too big for a proper school in a 10g
The good stand by-Neon tetra school of 6-some Bettas are okay with them and other are not...for other small fish and I would go to the the fish shop and look at their fish and see what you like, write down the name and then research them.
Fun getting a new tank and stocking......are you going to add more live plants?
or if you do plan on more live plants wait until it has matured some and get 5-6 ottos....