Rosy Barbs - How long before eggs hatch from time of spawn?

Andy S

Just a quick query -

I set up a breeding tank for my Rosy Barbs and this morning I am pretty certain they spawned, lots of chasing through the spawning mops for about an hour at first light. What is the time scale from here? How long before the eggs hatch and how long before they are free-swimming?
Water temperature is 23.8 degrees.
 

Demeter

I can't say for sure without researching (too lazy right now) but I'd guess 1-3 days. Egg scattering species tend to have fast hatching times but their fry will take another couple days to become free swimming.
 
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