I been reefing for about 2 years now but allways had smaller tanks thats been around 40 gallons max. I never had too dose or add trace elements too my tank all i did was weekly water changes and my corals stayed happy and healthy.Well I recently moved bought a redsea 425 xl and everything has been fine the corals I have been doing well but last few weeks I noticed they ain't as fluffy or as happy so I started testing and notice even with my bi weekly water changes that my alk and calcium are kinda low and my ph is super low so I started doing some digging and found out about dosing kalkwasser with a dosing pump and it would help with my ph, cal and alk levels but idk where too even get started. My wife bought me a redsea doser like 6 months ago but I been kinda scared too use it and mess something up. I know they say start slow so what would be a good amount of kalkwasser too dose per day for a red sea 425xl size tank. And would my redsea doser work for dosing kalkwasser or should I buy a cheaper smaller dosing pump just for this.