hello to all fish enthusiast.i am new to this site.hope i can get some helpful answers from here.i have 4 seperate fish tanks set-up.one is a community tank[30gal],another one is young jack dempseys,about 8 months old[30gal high],another one is american ciclids,another jack dempsey[55gal]and the last one i have is full grown jack dempsey by itself cuz it's very aggressive,likes to beat up everything put in there including the algae eater that was bigger than it is[55gal]:newbie: