I'm thinking of hatching
brine shrimp because I think my bettas would enjoy chasing down some live food as a treat and I know moderate amounts would be nutritious for them.
I'm concerned about buying either live or frozen brine shrimp from the pet stores because of possible introduction of mercury from harvested wild-caught shrimp, parasites or other nasties. Am I being overly paranoid? Would hatching my own be perfectly safe?
Here's why I became concerned about mercury:
Toxic Brine Shrimp?
What do you think of this guy's DYI advice? It looks pretty good to me:
http://www.cichlid-forum.com/article...p_hatchery.php
I'd plan to rinse them using a coffee filter (as he suggested) using treated water or tank water immediately before feeding.
Also, can I freeze the unused ones for later use? If so, how?
I used to hatch my own brine shrimp when I had a saltwater tank, but that was quite a few years ago. For all practical purposes -- since best fish-keeping practices have evolved -- I'm a newbie at hatching them. I can't remember why I went to the trouble even back then to hatch my own rather than simply buying them, but it probably had to do with worry about introducing parasites, viruses and/or bacteria.
I apologize if my questions have been previously answered, but spent some time searching and didn't come up with the answers I seek. Thanks for any advice you can offer!