Hey all.
For background: I have a 20 gal x high tank, currently housing 8 guppy adults and another 8 juveniles, 3 otos, and 1 amano shrimp. Mainly plants (amazon sword, Val, crypt parva, anubias, onion plant, moss ball, micro sword, & a red leafed stem plant called red naesea (sp?). The tank...