definitely not extinct. But endangered in the brunei area or at least red listed. Macrostoma's are forbidden from collection there. Most of the exported fish are from Sarawak where the laws are more lax.
These guys are probably like f3 from the breeder. I think it's important to make an effort to keep these guys around, no one has truly dialed down the recipe for success which is why the price remains relatively high.
They are a great species of Bettas to keep though, they grow to about 7-8 inches and develop a truly amazing color.
If they are mature and paired off they will breed like clock work every 15 days. The trick is to have the male carry the eggs to term, which is about 26 days. This is about the same as most shrimps + a few days, so this time around I can be much more patient. My Shrimps have taught me how. =)
Some males spook easily and swallow their eggs. Others may not be fertile, but there's many speculations on why they don't hold to term.
That's why this time I'm going with locally bred and starting with a group instead of just one pair to improve my chances of success. I'm also watching my water quality much more to decrease the chances of fungus on the eggs.
Those are awesome. I'm not very informed about betas so I'm not really familiar with the different types. What kinda parameters do these require and are they any more difficult to keep than the standard beta in a cup you buy at the LFS?
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They prefer really acidic water about 5 to 6 range. Definitely not much harder If you keep your water stable and clean. They are just much harder to find and much harder to breed successfully. Which reminds I need to do a photo update this weekend