ok guys marine keeper for 4 months now , with an 80 gallon a 18 gallon and my 9 gallon. the 80 is the one i will be changing i want a 8 foot tank or should i say the misses does. currently no sump,acadia series 3 with 2 15000k halides and the 2 tubes, skimmer,4inches of coral sand 60 kilos of...