Brine shrimp not hatching

MMacro · 09/23/2014, 05:16 PM

Recently, I started to hatch brine shrimp for my tank. I had been using the San fransico brine shrimp packets and they were hatching fine. When those ran out I started using other eggs that I had for a few weeks and they didn't hatch. Im not sure why they wouldn't be hatching. I keep the eggs in the fridge when im not using them.

vikubz · 09/23/2014, 06:14 PM

I got some from a fellow reefer who had them for a while and they would not hatch. Bought some new and they hatched just fine. Don't know what the issue was, but the new batch took care of it.

Steveb · 09/23/2014, 06:23 PM

Quote:

Originally Posted by Reeferplax

I keep the eggs in the fridge when im not using them.

Are they decapsulated brine shrimp eggs?

Reason I am asking is mine are freeze dried (keep them in freezer), but I have seen decapsulated that are for direct feeding (will not hatch) and some that are for hatching. So was thinking maybe that was it...

2_zoa · 09/23/2014, 06:29 PM

What brand eggs are you using now?
What temp are you keeping the hatcher at? Temp is what made a world of difference for me.
What time frame do you give it before you call it on the hatch?

MMacro · 09/23/2014, 06:51 PM

Quote:

Originally Posted by baringcs

Are they decapsulated brine shrimp eggs?

Reason I am asking is mine are freeze dried (keep them in freezer), but I have seen decapsulated that are for direct feeding (will not hatch) and some that are for hatching. So was thinking maybe that was it...

I dont think they are decapsulated. They came in a tube.

MMacro · 09/23/2014, 06:54 PM

Quote:

Originally Posted by 2_zoa

What brand eggs are you using now?
What temp are you keeping the hatcher at? Temp is what made a world of difference for me.
What time frame do you give it before you call it on the hatch?

Im using Ocean Star International Osi Brine Shrimp Eggs. I usually keep the temp the same as my tank. (78) They usually hatched within two days. I kept the system running for four days and they still havent hatched.

2_zoa · 09/23/2014, 07:07 PM

Quote:

Originally Posted by Reeferplax

Im using Ocean Star International Osi Brine Shrimp Eggs. I usually keep the temp the same as my tank. (78) They usually hatched within two days. I kept the system running for four days and they still havent hatched.

Im not familiar with those eggs. I've used the sanfrancisco brand and brine shrimp direct. I've had the best luck with the brine shrimp direct decapsulated.

cherubfish pair · 09/23/2014, 07:15 PM

The moisture from fridges and freezers might cause fouling. You also might want to close them tightly to keep moisture out.

MMacro · 10/12/2014, 12:31 PM

They still aren't hatching... I think I am going to buy new eggs.

09/23/2014, 05:16 PM	#1
MMacro Registered Member Join Date: Feb 2014 Location: San Jose, CA Posts: 2,442	Brine shrimp not hatching Recently, I started to hatch brine shrimp for my tank. I had been using the San fransico brine shrimp packets and they were hatching fine. When those ran out I started using other eggs that I had for a few weeks and they didn't hatch. Im not sure why they wouldn't be hatching. I keep the eggs in the fridge when im not using them.

09/23/2014, 07:15 PM	#8
cherubfish pair Registered Member Join Date: May 2004 Location: Libby, Montana Posts: 7,061 Blog Entries: 1	The moisture from fridges and freezers might cause fouling. You also might want to close them tightly to keep moisture out. __________________ pairo chero Thanks for looking at my build thread and subscribe to it if you already haven't yet! Current Tank Info: thirty rimless

09/23/2014, 06:14 PM	#2
vikubz Registered Member Join Date: Jan 2005 Location: Cedar Falls, IA Posts: 599	I got some from a fellow reefer who had them for a while and they would not hatch. Bought some new and they hatched just fine. Don't know what the issue was, but the new batch took care of it.

09/23/2014, 06:29 PM	#4
2_zoa Registered Member Join Date: Sep 2008 Posts: 1,840	What brand eggs are you using now? What temp are you keeping the hatcher at? Temp is what made a world of difference for me. What time frame do you give it before you call it on the hatch?

10/12/2014, 12:31 PM	#9
MMacro Registered Member Join Date: Feb 2014 Location: San Jose, CA Posts: 2,442	They still aren't hatching... I think I am going to buy new eggs.