http://www.bettatalk.com - Is an oldie but a goodie (although no longer selling, it has a lot of info)... Make sure you read all the way through her spawning sections before you commit yourself
The International Betta Congress -
http://ibcbettas.org - If you become a member, you can be put on the list to recieve a free pair of breeding quality bettas from one of many generous breeders. Note - their site has been on the fritz since yesterday.. so try back.
If you ever need more links you can just let me know
Breeding Bettas can be very rewarding... but it's not a cheap hobby to start. I spent about 200 on equipment, and 200 on my breeder stock. Who knows how much on "Other doo daa's"?
I wouldn't say it could never be profitable.. but you can't expect it to be. Most who are successful got into it just for fun... cause you've got to just laugh it off if your whole spawn dies, or no one feels like breeding, or everyone gets sick
Our set-up....
One 20 gal long tank in the living room, split with homemade acrylic panels into 6 compartments. A filtration system running clean water individually into each compartment / sucking dirty water out. Heated to 78 with a light and some live plants. And snails.... more on those below. Our 6 breeders are housed in there.
One 20 long tank in my bedroom, half filled, with a power corner filter, and a better filter standing by (for when the fry grow a bit and make more poo poo
), a hood with light, plus extra acrylic peices to keep it nice and humid for the males bubblenest. A couple of plants... and a (yes another LOL!) homemade acrylic "chimney" compartment for the female... My mom loves her sylicone aquarium glue! Heated to 82 with the very most reliable (= not cheap) heater I could get my hands on. 2 Thermometers, one on each end.
For the spawning tank.. Most go with the 10 gal... Some think a 20 may be too large, but I chose it because it will leave plenty of room for fry to grow, and I'll have to mess around less in the tank with young fry, which will stress them. A 5 gal is just too small... the female won't have enough room to get away from an agressive male, and if you do end up with fry, you'll have to move them into a bigger tank later to grow in. Females who have grown up together can usually be left together.
I would NEVER try to keep the breeder Bettas in unfiltered water (aka jars)... they are all too likely to contract fin/tail rot, fungus, or other bacterial diseases... especially after spawning when they have sustained injuries. They need as much room to swim, and the cleanest water, you can give them, or they may never be up to spawning.
As for the juvenile males when it comes time to seperate them... filtered would be best, but most reputable breeders use at least 1/2 gal to 1 gal containers and change the water a minimum of every 2 days. In anything smaller than that.. not only is the water getting fouler between changes, but your fry are just not going to grow well or quickly.
I have my own *evil* plans to raise my boys.... You can also look here at this amazing contraption someone built (down the bottom of the page)
http://www.bcbetta.com/fishroom.html
As others said.. Java moss is great to have, it's the best moss for low light, but there are several other mosses that are good too, and very pretty. I also love Bannana plants, they are soo cute! Water lilly bulbs have grown super fast in our tank, too, we keep having to cut it back. Make sure any plants you use dont obstruct the surface area, and dont grow too large in general.
Live food/freeze dried food is a must for your breeder Bettas... but NEVER use the frozen stuff **that you find in a pet store**... the liquid its frozen in polutes the water like nobodies business.
Betta fry get live food. Mine will be fed with Microworms, live baby brine shrimp, instant baby brine shrimp, and a bit later on, I'll substitue with Atisons Betta Fry starter.
You'll see stuff about water chemistry in the first link I posted for you... But also, I like to use "Cycle" which is a bacteria supplement that will help the cycling process along. I also use Atisons Betta Spa, which makes the water a little more natural for them. I use rain water to fill my tanks and do water changes. Alot of people simply treat their tap water (doesen't work for my water) or buy bottled.
From above - Apple snails are good snails
also known as Mystery snails, Pomacea Bridgessi.... They eat algae, excess food, and dying plant matter... but they dont eat live plants. They do not reproduce a-sexually, so it takes both a male and a female to make more.. and the eggs are laid above the water line, making unwanted eggs easy to remove. I have Purple and Magenta snails.. sooo cute!
When it comes to selecting your breeders.. Again there is lots of good info out there... But just know, you have to start with stock from reputable breeders and NEVER a pet store. There are many different colors of Betta listed with the IBC, but in general, you want clean colors without wash of anything else... (I'm using a wash fish because I am trying for something specific that it is suited for, and he's a quality fish). For fins (Halfmoons, since you specified).. To be considered a true Halfmoon, the Betta must have a cadual fin with a spread of 180 degrees (a half circle exactly) and no less.. Less than 180 and the fish may carry the Halfmoon gene, but you're not likely to get Halfmoons from it. Over 180 and it is considered an Over-Halfmoon, and that is desirable.
If you decide to go ahead.. I'd love to help you out with suggestions, links, or advice... and I'm sure these other nice BYC'ers would too!