My sister in law got me hooked. She had a brackish tank with a green scat and it was the coolest fish, lots of personality. When a local pet store had a sale on tanks she talked me into buying. 20 gallon. Started out with smaller fish but then i bought a green severum not realizing how big they grew. So that was my excuse to buy a 55 gallon and since then MTS hit me. And not just MTS, but BTS also (bigger tank syndrome).