i have a 29 gallon tank, 30" long about 12" wide and 18" high. it is essentially empty at the moment, but has been up and running for months. what fish would be recommended to keep in there? im leaning towards something noticeable, like around 4-6", so perhaps some south american cichlids? i like the looks of africans, but from what ive heard, they need a 55 min. tetras, gouramis, and other weenie fish dont interest me. large fish do, hence why i post on this forum!