I am planning on setting up a 55 gallon tank but have some concerns on the amount of time I need to dedicate after the initial setup. With a full-time job, two kids, and plans to take the CPA, my time is limited. How much time weekly should I plan on? Are there specific breeds that are easier/cleaner than cichlids in general? Are weekly water changes always necessary or could bi-weekly work? Any other advice/tips are appreciated.