It says they been in the hobby for 90 years
and were rare...I guess. I just noticed them this last year at the LFS...
Freshwater butterflyfish are found in the slightly acidic standing bodies of water in
West Africa. They require a year round temperature of 73-86°F. Butterflyfish are found in slow to no current areas with high amounts of surface foliage for cover. They are commonly seen in
Lake Chad, the
Congo Basin, throughout Lower
Niger,
Cameroon,
Ogooue, and Upper
Zambezi. They have also been seen in the
Niger Delta, Lower Ogun, and in the Lower
Cross River.
Here's something I didn't know till right now...
They have been bred in the home Aquaria. Lowering the water to only a couple of inches in depth for a few weeks and then refilling the tank with fresh soft
acidic water and raising the temperature can stimulate spawning. Spawning is preceded by the male chasing the female and actually raising himself on top of her.
The eggs when laid are clear and after about ten hours turn very dark and float to the surface. The butterfly fish spawn over many days so the eggs should be removed with a spoon to a separate tank with identical water conditions. They hatch in about two days and the young are difficult to raise excepting only the smallest of live food.