I'll wait until tomorrow to hear your method. I know about the bottle method so if you have any helpful hints to do with that method (if that is what you do) then I'm definately eager to hear them!!
It's nothing special, just a big cheaper sea-monkey tank
.
The bottle method is a way of hatching BBS (unless you have some other 'bottle' method), not for growing brine shrimp to adult hood and breeding them in a sustainable colony. If you want to grow them to adult hood in something as small as a cola bottle and with low maintainance, then you are going to get a very low yield of brine shrimp compared to doing something like
this.
Is that what you want?
Food wise, powdered yeast (use a mortar and pestle for this if you can) is good, spirulina powder is great too if you can find that.
You will also need salt, sea-salt from the supermarket works well as long as it doesn't contain any additives like anti-caking agents (that's what they say at least, I doubt it actually makes a difference and this is something I am going to test at some point). Marine salt for reef aquariums works very well too if you have any of this lying around, but it's not worth buying unless you are going to use RO water for the tank.
I would avoid tap water, but you can use it if you want and it usually works
. It's better to boil it than add any dechlorinators for a few reasons, and I've never had success with dechlorinated tap water.
The best water to use is bottled spring/mineral water from your supermarket.
You are looking to add 30-35 grams of salt per litre
What size of 'tank' are you going to be growing them in?