Separating artemia from eggs

LobsterOfJustice · 02/03/2008, 08:33 PM

Hello,

I tried hatching out some brine shrimp for the first time this weekend... I could see them swimming around after 24-36 hours, But I'm having trouble separating the eggs out. Instructions said to shine a light at the bottom and let the eggs float to the top. After 10 minutes with a flashlight at the bottom, nothing. I thought maybe too much ambient light, so I covered the top half in aluminum foil and had the flashlight at the bottom... still dont see much separation after 15 minutes. Also, i guess the unhatched eggs seemed to float, but as soon as I touched the setup a bunch began to sink back into the water column.

Is it really much of a concern? Should I just kind of pour off whatever is in the top 1/4 or so and know it's not 100% efficient?

Lynden-Jeff · 02/03/2008, 08:36 PM

I used to use a pop bottle with at least a 60w light bulb right at the bottom and they would all swim down there. I then used a piece of rigid air tubing to syphon them out. Try a stronger light then a flash light, I don't think that will be enough.

Cheers

02/03/2008, 08:33 PM	#1
LobsterOfJustice Recovering Detritophobe Join Date: Jan 2004 Location: Cary, NC Posts: 7,443	Separating artemia from eggs Hello, I tried hatching out some brine shrimp for the first time this weekend... I could see them swimming around after 24-36 hours, But I'm having trouble separating the eggs out. Instructions said to shine a light at the bottom and let the eggs float to the top. After 10 minutes with a flashlight at the bottom, nothing. I thought maybe too much ambient light, so I covered the top half in aluminum foil and had the flashlight at the bottom... still dont see much separation after 15 minutes. Also, i guess the unhatched eggs seemed to float, but as soon as I touched the setup a bunch began to sink back into the water column. Is it really much of a concern? Should I just kind of pour off whatever is in the top 1/4 or so and know it's not 100% efficient? __________________ If it's worth doing, it's worth doing right. I remember when zoanthids were called things like "green" and "orange" and not "reverse gorilla nipple." Current Tank Info: 180g reef with all the bells and whistles

02/03/2008, 08:36 PM	#2
Lynden-Jeff Registered Member Join Date: Jan 2008 Location: Southern Ontario Posts: 27	I used to use a pop bottle with at least a 60w light bulb right at the bottom and they would all swim down there. I then used a piece of rigid air tubing to syphon them out. Try a stronger light then a flash light, I don't think that will be enough. Cheers