I think this controller beats the reef keeper.For 1 you have a a few types of programs for the ph so you can set it up by time,graph where it goes up and down during a set duration,set it up so that it doses at night plus you can hook up a calcium reactor to it.The basic package also has a level sensor for top off and the heat sensor for temp.You can also buy the ORP probe witch the reef keeper doesn't have the option of ozone.Its something to consider if you ever want to use ozone.It is more expensive than the reef keeper.You can also monitor another tank if you want but you have to buy another power bar for that.Let me know if you want that because its cheaper in the States.You can also buy the doser unit from them.You program it to dose in ML so if you don't own a dosing unit its not bad.Its a triple doser so you can dose mag,alk,calcium, or kalk from a container.Let me know if you want that because its cheaper in the US.My cousin lives there so I send it to him.The unit is $699 so its the same price in Canada and the US.The extra stuff you can buy is cheaper in the US if you compare prices.I am going down to pick up my skimmer and lights next week so if you wanted to order anything you can PM me.I would buy the unit from here but if you want any extras compare the price in the US.You can save some money on that.I should have bought my dart pumps from the US I could have saved A good $180 plus some other reef stuff I bought.