Opinions:
Barley bale could very well also suppress phytoplankton develpment. Barley works better on some algae and not others. Suppressing phytoplankton if not replaced by equivalent pellet food will stifle fish production. Phytoplankton and smallest zooplankton are very improtant to development of fish fry.
Caging fish. This should work okay to over winter some breeders in the larger pond. I have done that, it should work for you.
GSH. If they can keep the FA controlled in your pond, I want to know about it. Good luck on that one. If FA is present it can make seining fish a real pain. Consider using granular Green Clean (same active product: Phycomycin) to control FA in the small pond. Copper based algacides can be harmful esp to fish eggs and fry.
Last edited by Bill Cody; 03/15/11 07:56 PM.