If you live in a warm place (like I do here in Arizona) mosquito control is easy!
Mosquito Dunks and Pellets are by far the most effective.
Or you can add goldfish--but if you don't like goldfish you can also use OTHER fish species too. I have had alot of success with 'tropical' ponds. EXCELLENT fish choices for a tropical-mosquito-control set-up are :Tilapia, Bettas, Gourami, Mollies, Platties, Golden Killiefish, American Flag Killiefish, Mosquito fish, guppies, Dianos,.. In the case of the predatory fish (Gourami, Betta, Killiefish) you will want to get a deep container, and keep the water level at least 8 inches from the top--why? Because these fish spend almost all their time at the surface looking for pupating larvae and they will jump out of the water to catch bugs, and may end up jumping out onto the ground...Also if you think its going to freeze, or temps may drop below 60 degrees, you will have to pull your tropicals inside, or they will die--most aquarium fish are wild caught from the Amazon or south India where there is no such thing as a below 60 degree temperature--very few are farmed (bred for pet trade) so be responsible when selecting your fish...don't choose tetras or 'strange' looking fish because they look cool--alot of common aquarium fish are going extinct in the wild so please make sure you choose a hearty species that can reproduce in captivity---these fish are commercially grown like the ones I listed above.
If you choose to use fish just remember you can't just ignore the quality of the water.. Fish are trapped in the water container, when it gets dirty they can't just choose to move to a cleaner place-- keeping the water clean will also help prevent green Algae blooms that will suffocate your fish, or hair algae that will grow over and strangle the duck weed. Algae blooms occur when the water quality is compromised--usually due to too many disolved solids (i.e Fish waste) in the water for the algae to feed on, OR when there is too much sun, and not enough duckweed at the surface to block it out.. It helps if you place your grow ponds in shady areas where they can receive morning and evening sun. And a little bit of bird netting will keep your local birds from eatting your fish ;)
Kids love tropical ponds, and seeing cute little guppies and a bright red gourami swimming around--its like an outdoor aquarium! And you may even get carried away and, add cattails and pink flowering water lilies :P ---Or if you have a large enough container/pond for Tilapia its fun to have your own mini fish farm. But having fish is like having any other animal, they shouldn't get neglected just because you intend to feed them to chickens, or use them soley as bug control. You are what you eat..you treat your chickens well so they provide you with healthy food to eat--treat your chickens food well so they provide you with healthy chickens.
Edited by ElizabethAz - 4/10/12 at 9:30am