2 Brine shrimp hatchery dishes. Great for small number of fry tanks. Once I had over 8 species of fry going moved to larger production methods. This was nice as no power needed, kept eggs separated from baby brine and easy harvesting. Copy and past link below for a short video. normally at least $25 each. Hatchers only no eggs.

https://youtu.be/GCxItmHRsn4.com