here's my quick answer. get a catlog from aquatic ecosystem. most important to test for fish productivity is alkalinity, it controls pH. Lamotte kit is about $22 your reading should be above 20 ppm if not add lime lots of talk here about that. pH, dissolved oxygen, hardness can also be checked and kits are avail. Get the water teseted for fecal coliform for the leaky septic by a qulaified lab about $25-$50 bucks for one test.
