I am about to start my marine fish adventure with my daughter. I have several freshwater tanks and am a fairly experienced fish keeper in that realm, but marine tanks have always scared me. The issue I have now is tank size. Should I start with a nano or just jump in and go to either a 75 or 90? My main concern is if I mess up in a nano the cost won’t be so high as if I mess up in a four foot tank. Any help is appreciated