So here's my story on the hobby..My cousin gave me a 30g with an aqua-tec 20-40 filter a heater and air pump with air stone and hoses and it began.. I knew nothing about keeping fish I was under the impression you add your décor, the filter, air, heater, décor then add water and fish and it worked all magically and beautiful..... thanks to forums like these and youtube I learned that wasn't the case and its way more complicated. 3 weeks in and I'm addicted now! ill be getting a 75g in the next week and I'm a newb so to speak and will have plenty of questions! Thanks in advance!