Hello, I'm Alex and I'm new to this site. I am excited to explore this website and answer and have people answer my questions. I'm not new to fish tanks but not experienced. I have had about everything that could wrong in a tank happen to me. I have spent LOTS of money and time on my aquarium. I have a 75 gallon with an needlenose gar, 3 Senegal or dinosaur birchirs, 2 jack Dempseys, pleco, catfish, and a electric blue cichlid.... I know some of these fish aren't suppose to get along. Well again I'm very excited to be a part of this website.