Kalwasser dosing advice

[MaddReefer]

Ok, I have a 450 gallon , I would like to cut back on dosing 2 part. How would you recommend dosing ? Using in Top off is not an option. Gravity diy ? Reactor ? Not sure with big of tank.

 

[WIReefer]

Ok, I have a 450 gallon , I would like to cut back on dosing 2 part. How would you recommend dosing ? Using in Top off is not an option. Gravity diy ? Reactor ? Not sure with big of tank.

I would use a doser, just drip it constantly throughout the day. Would mix the kalk pretty strong since your system is large. Obviously depending on kalk demand.