Hello everyone I have kept fish from the time I was little, worked with them , and now they are my hobby. I have freshwater, planted saltwater, and a reef tank. my oldest fish is nessie a 3 ft American eel I have had her for 9 years so im guessing she is around 10 years. she has quite few different fish in with her. I started using sand when I got nessie cause the gravel irritated her belly and made it pink. now I use sand in all my tanks. I also have a planted tank with cherry shrimp algae shrimp and a few cory cats, a fowlr with a huma huma and a blueline grouper and the reef tank has a group of green chromis a pink skunk clown a black ocellaris coral beauty and some inverts.