HI GUYS i was going to try three pair in my new 240 gallon but i think i will just keep the two pairs so i will sell one of the pairs for $80.00 i know it is a little high but i have had to go thru 6 pairs to get three good ones to live i have had them 4 weeks and paired toghter for 3 weeks they are for pick up in yonkers ny 10703