I am thinking about converting a 5.5 gallon freshwater into a mini reef for my bedside table( next to the 40 breeder lol). But I am wondering if 270ish gph is too much for that small of a tank? I will use an aquatech 5-15 power filter from Walmart and a marineland 660 powerhead I found in my closet. Would those two combined be to much or to little flow for that little tank?