Would "two" of these be good enough for a 300g reef tank? dimensions are 8'x36"x24"
http://cgi.ebay.com/ws/eBayISAPI.dl...36495&ssPageName=STRK:MEWAX:IT#ht_3141wt_1165
http://cgi.ebay.com/ws/eBayISAPI.dl...36495&ssPageName=STRK:MEWAX:IT#ht_3141wt_1165