Small scale aquaponics system

Early this year we started using small scale aquaponics systems were we grow basil, wheat grass etc. with a beta fish in a small tank bellow the grow bed.

Every other day we feed the fish and test the tank water for certain parameters such a pH level, ammonia level, and nitrate level. We test these parameters because a beta fish can only tolerate certain levels of Ph, ammonia and nitrate. We also experiment with feeding the fish such as if feeding them too much or too little will effect these parameters.