Why does it take so long to cycle these octo tanks( i've read that it takes at least 2-3 months)....when fish tanks only take 1 month and sometimes less??? My lfs owner who is helping me with my setup has kept 4 octos in his life and he cycled his tank in about a week he said...... I have ordered a 75gallon overflow tank with a 20gallon sump and a 20gallon food tank, a protien skimmer rated for 125 gallons, and 45lbs. of live rock to start with.....should come in next week......what do you suggest as an approximate cycling time???