Calc reactor or 2-part ?

[beardown]

I'm in the process of a 210g build. This build will be mostly sps, some acans ---love them acans--, and possibly a euph or two.

Right now I have a DOS and DDR on my 93g, using 2 part. I'm wondering if it's worth the investment, or should I stick with the 2part for the new tank?

Thanks in advance!

 

[Bouncingsoul39]

The two part dosing will cover you for a while in the 210 but with increasing SPS growth you will reach a point where it will become cost prohibitive and a Calcium reactor will become a great long term investment for $ savings and parameter stability.

 

[hyacinth]

Since you already have the DOS system, stick w/ dosing 2-part until you need a reactor.