who walks that line? i transitioned from a high tech tank to a medium light no co2 tank. most of the plants are high light plants, hc, tropica, different rotalas, red ludwigia... seeing lots of lower leaf melts. some bba creeping in. i pulled out and set up the co2 equipment. dosed metricide to kill the bba. there are no shrimp (except for a hitch hiker that i see from time to time) in the tank yet, as its still cycling. this will be a crs tank once cycled. who walks that fine line between co2 and shrimp tank. i know most ppl avoid it but if it can be done whats your secret?