Please help I just got back into the fish game after a 9 year hiatus I am setting up a 55 gallon tank tomorrow for 2 jaguar cichlids im stressed about sand or gravel now the guy I am getting the tank from had sand he's used for 3 years and I want sand personally instead of gravel. Also I and trying out for the first time a Penn plaxx canister filter 1000. Please tell me what's best gravel or sand. I'd like to try sand for once. Thx happy New Year to ALL