thanks guys, there is just so much stuff out there it makes you think that at least some of it is neccesary! I have seen a lot of products that are sold as sets, where you buy one but it works with 3 other bottles and at the end of the day you just bought 100 dollars worth of stuff. Are any of them beneficial like the kent nano bottles(the pair)? i have a 20 long, and am willing to keep up on WC's but with mostly softies and feeding cyclope eeze, rotifers, any thing else you guys might suggest?, just upgraded my lighting and want to add some wow factor in the way of softies,ive been doing FOWLR for about a year and a half