I have had it for 10 years i kept a reef for 5 years .Bought a little box of reef bugs to feed my coral. Big mistake it gave me red flat worms . The medication for the is hard on everything in your tank .You have to get it out of your tank via charcoal protein skimmer water change. So at set time I put in a pound of charcoal turned on skimmer and 20 percent water change. My ventury plugged on my skimmer ,on bubbles . And I did not get it out in time . It nuked everything only thing that lived was one of my clowns. It is now a fresh water mbuna tank with so many babies my system is getting over run . So now that I have achieved greatness with freshwater. I am going to give saltwater one last try.