reef keeper lite vs apex jr

[itsbobbyz]

kkiel02
what else did you purchase to monitor your tank
i know that it only comes with the temp probe

[kkiel02]

I still only use temp and ph. I also bought the variable speed addition but I havent needed that yet. I will soon though. I didn't need it for ato as I already had the tunze osmolator but you can also do that if needed. Actually there is a ton of things both these units can do.

[itsbobbyz]

what do you mean for auto top off
im planning on purchasing one soon as well
is there a addition that i can use with the apex?