Im chiming in about the dosing pump. I think kalk is one of the best things i have ever done to my tank. Yes, with the right doser you dont need a float valve, you just find out your evap rate and set the amount of ml's/hr you want to add...I just set it to a number then tested the salinity every 24 hours until it stayed solid for 3 days...then i just leave it at that number.
here is what i use....nautilus II from innovativeaquatics....keeps my ph 8.23-8.33, alk and CA constant, salinity constant....only cost 170 bucks
Sorry for all the wires exposed...i had just moved so they were everywhere...eyesore!!!here it is though:
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i drip it into my sump:
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if you are considering starting up on kalk you will need a PH monitor for sure...kalk is very potent and carries a ph of 12.0 so using a monitor is necessary IMO
heres a cheap one
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