What is the best equipment purchase you have ever made?

[phreezee]

Easyblade - with my big tank, saves me hours of work.
Ozonizer - if I had started with it I would have save hundreds in UV and QT equipment. Plus crystal clear water!
ATO system - plain old float valve.

[christyf5]

Originally Posted by phreezee

Easyblade - with my big tank, saves me hours of work.

+1 that thing is awesome!

[sphelps]

RD pump and BK skimmer purely for the low noise level. It's nice to have your tank and equipment in your living room without it making a single detectable sound.

[Madreefer]

BubbleKing Mini 180. Awesome skimmer but had to get on the cone skimmer phase. Sold the BK and got a Vertex Alpha Cone 250. Even better skimmer. And even though I did have some problems with 1 of my MP40's they are on my list just for the effect they have had on my tank.