it only takes about 10 minutes for the eggs to settle.
i dont think temp makes a difference. i had mine in my fry tank, when i extract the bbs out i leave it hanging on the side of the tank, but after a few days i decided to see if itll still hatch out of tank, which worked. just use the same tank water from the tank in your hatchery, if out of tank the temp will go down a bit but i dont think it will make a difference.
for my first batch of eggs it didnt hatch well, try mixing the unhatched eggs at the bottom of your hatchery with a stick or something to get it going before the bubbles start the tumble, that might help.
i dont think temp makes a difference. i had mine in my fry tank, when i extract the bbs out i leave it hanging on the side of the tank, but after a few days i decided to see if itll still hatch out of tank, which worked. just use the same tank water from the tank in your hatchery, if out of tank the temp will go down a bit but i dont think it will make a difference.
for my first batch of eggs it didnt hatch well, try mixing the unhatched eggs at the bottom of your hatchery with a stick or something to get it going before the bubbles start the tumble, that might help.