I have a brand new RKL that i was going to use but after hearing all the issues with product updates and reliablity/ lacking customer support I am hesitant to get it wet.
I too was thinking profilux or apex. Profilux seems like it will cost me more than all my other tank gear combined but they seem to come out with new add ons quite regularly. Apex is at a standstill for new modules but it looks like your really dont need anything else. I have read that the PRofilux can be tedious to setup and takes a real tech savy user to use. Apex seems more plug and play.
As for dosing pumps... you dont need it to interface with the computer. Just plug one of those Drew's Doser or BRS Two Part dosers to the powerbar and setup timer intervals on the controller. The dose rate on the pumps i mentioned is very accurate so its just up to you to determine time intervals and you are good to go.
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