I've made a lot of newbie mistakes over the last year and learned from them. Like don't get two java ferns then get new bright lights! I'm interested in maybe starting to use a simple CO2 system but know little about them. Is there anything on the market that is fairly simple, not too expensive and not overly complicated? I'm concerned that setting one up will lead to a hornets nest of hidden costs. Any help from the AA folks is AWSOME!