I have what I was told are 2 Pairs of H.Littorle,size between 6"-8",kept in a 45 gal long tank,fed live tubiflex worms,bloodworms,pellets,& assorted frozen foods.I know there bubble nest builders,have some LG leafed plants & a plastic lid to build there nests.PH is 6.8-7.0,do reg water changes,but ...