I've built several tumblers but found them to not really be needed. I either wait 10 days from when the females are holding eggs and harvest the fry or I harvest the eggs and put them in a jar with a small ball shaped airstone. The females "tumble" the eggs secondary to passing oxygenated water over them- not because the need movement. I can get 100% hatches by using ceramic oxygen diffusers with all eggs sitting nearly motionless in bunches or even in netting setting in a brood tank.


Kellen, if the guy in Minnesota bought several hundred from you about 4-6 weeks ago, it may be a guy that I suggested call ya.

Last edited by Rainman; 12/10/09 05:53 AM. Reason: just planted 2000 pounds of blues and should have> 20,000 pounds ready to stock in late March