Neal
Live life, don't let it live you!
When I got my first betta from Barrats garden centre, it came in an about .5 litre cube and it also came with a sheet of information, that I am wondering if it is true or not, so I am going to type up the information and get your points of views on it, too see if the shop is actually being cruel on the fish or not.
Here it goes:
NOTE: Sorry, at the minute I cannot find the information sheet, but off the top of my head I can basically say what they said.
Bettas are supposed to live in swamps and muddy ditches, they have been bred over hundreds of years to be show fish, and the .5 litre cube is a perfect environment for them as they feel safe and can show off their fins.
It's something along the lines of that, but when I find the letter I shall edit my post and show you what they said, I kept my betta in the cube for about 2 weeks and then I went back to barrats to buy a bigger tank (about 2G). It now looks alot happier in that tank, but it isn't very active, I think it's because the temperature might be too low, but it's a 50W heater in a 2G tank, so it shouldn't be too low at all, and I also do not know how to alter the heater or test my water temperature (I do not have a thermometer). I bought some silk plants today, but i'm going to totally refresh my tanks tommorow and change around the ornaments, so my big tank can have a big ornament, and my little tank can have the little ornament, i'm also chucking an ornament away as it is rubbish quality and it's very old, I have a plastic flower/plant thing, two natural (ferns I think they are called, I always forget the name, they are common tree/bush like plants that are only small), three silk plants, wich are 1X ECHINODORUS - "RED RUBIN" (10CM)
1X NUPHAR JAPONICA (10CM)
1X LOBELIA CARDINALIS (20CM).
Here it goes:
NOTE: Sorry, at the minute I cannot find the information sheet, but off the top of my head I can basically say what they said.
Bettas are supposed to live in swamps and muddy ditches, they have been bred over hundreds of years to be show fish, and the .5 litre cube is a perfect environment for them as they feel safe and can show off their fins.
It's something along the lines of that, but when I find the letter I shall edit my post and show you what they said, I kept my betta in the cube for about 2 weeks and then I went back to barrats to buy a bigger tank (about 2G). It now looks alot happier in that tank, but it isn't very active, I think it's because the temperature might be too low, but it's a 50W heater in a 2G tank, so it shouldn't be too low at all, and I also do not know how to alter the heater or test my water temperature (I do not have a thermometer). I bought some silk plants today, but i'm going to totally refresh my tanks tommorow and change around the ornaments, so my big tank can have a big ornament, and my little tank can have the little ornament, i'm also chucking an ornament away as it is rubbish quality and it's very old, I have a plastic flower/plant thing, two natural (ferns I think they are called, I always forget the name, they are common tree/bush like plants that are only small), three silk plants, wich are 1X ECHINODORUS - "RED RUBIN" (10CM)
1X NUPHAR JAPONICA (10CM)
1X LOBELIA CARDINALIS (20CM).
The 'information' is not true. Bettas live in rice paddies:
The only thing that should go into a .5 litre container is a drink .... 
I think you should just take it step by step so you know what they need and want as a breed before you go that far. When you are more sure, you'll have better instincts and can cope easier if something goes wrong and will have more creativity too. When you've got alot more experience then I think it would be a natural for you to spawn them. I know I think about doing this but just don't have enough experience yet and just don't want to take any little betta lives as a result of my ineptitude. Then you won't have to post asking frantic questions hoping that someone will get right back to you ASAP and all that sense of urgency stuff with those little betta lives hanging in the balance...not just one but maybe 100. All things come to us in good time if we persist with them so hang in there and keep your focus going. Might not be that long of a time anyways....that's my advice to you.