These dropper bottles (white screw cap) of Instant Algae food for Daphnia/ Artemia will stretch your supply, if you don't feed all of your daphnia or brine shrimp to the fish straight away.
The dropper bottles are hand filled, by us, from a large bottled supply of Hobby LiquiZell and are not labeled.
The product picture shows the original 50ml bottle beside the hand filled ones.
The daphnia will keep reproducing every 2 to 3 days, if kept at room temperature, in a 1-2 Liter glass or plastic container. More water is better, but fill your container slowly or your live food can go into shock.
Feed just so much that the water turns slightly green.
This may take a few tries, to get the amount of drops to the amount of water used, right.
Usually it is as follows: 1 Liter: 3 - 4 drops 2 Liter: 4 - 6 drops