Hi, I am completely new on fish tanks but I love fish and would like to give a try. I've seen this many beautiful saltwater/reef aquariums and I want one so much! I don't want to spend thousands of money in a glass tank as I don't have THAT experience yet. I was wondering if a 20 gallon tank is worth it or should I get a 40 gallon? I've seen the ones from Aqueon and Top Fin but also they have a lot of reviews claiming water leaking. Anybody has any advices?