07-17-2005, 02:54 PM
Join Date: Jan 2004
iTrader Positive Rating: 100%
I read somewhere that to keep koi, you need a minimum of 1000 gallons. But I'd think that a 200-gallon would be fine as a grow-out pond. Still, you'd have to decide what to do with it later.
Here in the SF Bay Area, they have a vector program where they will give out up to 50 free mosquito fish (Gambusia affinis). In the last two or so years, they've even made albino mosquito fish available. We got seven of the regular ones (I think it was recommeded that you get 1 fish per 6 sqft of water) for a broken-down jacuzzi that was collecting water. It was teeming with mosquito larvae. The fish are nothing to look at, but cheap, reliable insurance against having a breeding ground for West Nile virus.
Anyway, it's good to have *something* in there. Personally, I like the swordtail idea. But hey, if glow-in-the-dark danios are legal where you are, they might make an interesting conversation piece for those backyard barbecues that go on past sundown. Although I doubt they'd last long in an outdoor pond with any nocturnal predators around