alrighty guys newbie question time. I have all my supplies from other projects I can do around a 1500 gal system without spending more then 20 bucks thank god for past projects. so questions 1 lb to 3 gal rule is this the whole system or just the fish tank. I plan on grow algae and duckweed for food can I grind the algae and mix it with a soy bean meal I have? how do you feel the duckweed alive or dried. next biofilters are they their own tank? a diagram on them would help a lot. where do you get the baticera for the system. side info western Colorado. plan on building a green house and raising tilpia with fresh water shrimp like red cherries. the shrimp will also be used as a food for the fishes. thanks guys. sorry on my phone maybe hard to read.