Our first fish choice was channel catfish which turns out to have been a very good choice for outdoor aquaponics here in central florida. channel catfish can take the heat just as well as tilapia yet they can also handle the cold and will even keep growing well below the 70 degree f water temp that usually slows tilapia down.. It will cost you thousands to buy a pre-made aquaponics system. since aquaponics is an easy to replicate ecosystem, you can build an effective cheap set-up.. I've read that vinegar can be used to lower ph levels in a hydroponic nutrient solution, and baking soda can be used to raise them. do you recommend this.
The aquarium works in a constant three step cycle: fish eat and leave behind ammonia-rich waste. ammonia is then broken down into nitrates by bacteria in the water.. Archives and past articles from the philadelphia inquirer, philadelphia daily news, and philly.com.. We use rainwater for most of the house, and never noticed abnormal ph causing a blue coloration. i have noticed some blue stains in other rain water supplied homes, but usually in enamel baths with dripping taps..
