Re: [Killietalk] hatching brine shrimp

[Mike Clark <mike_gm6ofo at talk21.com>]

If air is pumped into the hatcher the surface area is not as you state as there is a change in surface area as the air changes the water at the surface.
   
   
  Mike

Curtis Smith <cskillies at hotmail_com> wrote:
  Occasionally you can teach an old dog new tricks! I recently attended a 
aquarium club meeting where a brine shrimp expert spoke. I learned that 
the surafce area of the hatching container determines the number of cysts 
that can be hatched successfully. Thus, double the surface area, double 
the number of cysts you can put in the container. That is why commercial 
harcheries use pyramidal cones as it maximizes the surface area. Here are 
some surface measures of common hatching containers:

plastic pop bottle about 43" in diameter = 12.56 sq inches
one gallon pickle jars about 5.75" diameter = 18 sq inches
large plastic snack containers about 8" diameter = about 25 sq inches
5 gallon pyramidal cones 12" by 12" = 144 sq inches
3 gallon water in above cone (my new choice) = 81 sq inches
5" by 12" plastic shoebox = 60 sq inches

Ever wonder why people that hatch very small numers of brine shrimp in 
shoeboxes or trays are seemingly more successful that we who use pop 
bottles?

Curt Smith

_________________________________________________________________
http://imagine-windowslive.com/hotmail/?locale=en-us&ocid=TXT_TAGHM_migration_HM_mini_2G_0507

Join the AKA at http://www.aka.org/aka/modules/content/index.php?id=9.
Archives are at http://fins.actwin.com/killietalk/
Modify your subscription at http://www.actwin.com/mailman/listinfo.cgi/killietalk


       
---------------------------------
 Yahoo! Mail is the world's favourite email. Don't settle for less, sign up for your freeaccount today.
Join the AKA at http://www.aka.org/aka/modules/content/index.php?id=9.
Archives are at http://fins.actwin.com/killietalk/
Modify your subscription at http://www.actwin.com/mailman/listinfo.cgi/killietalk