Kalk Reactor


New member
We just upgraded our 120g reef to a 375g reef.
We have a GEO 618 Calcium Reactor, (IMO is a great reactor)
but can not keep up with the supply and demand of the new tank.

So, I'm looking for information on a DIY Kalk Reactor..
We are using the JBJ ATO now, which is in a 65g holding tank of RO/DI water, using a cap 1800 pump.

Any advise or recommendation is appreciated.