welcome to rdm shrimp. let's go. >> karlanea and darryl brown are accidental shrimp farming pioneers. >> how we doing on count? >> i'm at six pounds. >> with their two dozen basic backyard pools as growing tanks, they've perfected an indoor system with zero waste... no chemicals and a 90 percent survival rate. that's a third higher than traditional outdoor shrimp farms. >> wow, this is like a little laboratory here? >> yes it is. >> and a shrimp farm? >> yes it is. we do nine tests every single day. we do temperature, dissolved oxygen, nitrite, co2, salinity, alkalinity, ph, ammonia and floc. as you can see our water is brown. the test we're doing here right now is we're trying to see how much bacteria is in our water, and we call this settling. >> so you're basically waiting for all this bacteria to go to the bottom, and that tells you how much is in there? >> how much we have in it, exactly. and if we're over a certain level than we have to get it out of the tanks otherwise it's gonna start suffocating ou