I am fairly new to the saltwater tank scene. I started 5 years ago and failed miserably and gave it up. I recently got a 6 gallon nano cube for my birthday so I decided to give it a go again but this time with better knowledge and definetly some actual patience. I just started up with some live sand and live rock. Its only been 5 days since I started. Any suggestions of other things I should get for now. I dont want to do crazy upgrades just yet, again I dont want to rush it. Also I know the riskiness and danger of a 6 gallon nano cube, and the extra care im going to have to take, but I think it will be challenging and rewarding in the end if I accomplish it. Also I've been trying to wrap my hear around a protein skimmer, but I think it might be overkill for a 6 gallon. Do you think if I just do frequest water changes it will be enough?