thanks Billy
let me see if i can make my question a little more clear.
i see this with a lot of reefers, they buy a calcium reactor and have it running for a while then they notice that the demands of the corals are more than the calcium reactor can handle (as the corals grow) so they buy a kalk reactor to help or they dose to keep the levels up to where they need to be.
so basically, when i buy a reactor should i get a large one for like a 1000g tank or would one for a 500g tank work to where i wouldnt have to buy a Kalk reactor later down the line. my water volume is around 250g-300g gross
i am trying to buy the right size reactor for my tank (when i get the $$$), so i dont have to dose anymore to keep the levels @ 420 (why they are purchased) and if the Calcuim reactor wont keep it up to that level in the long term, then......
Jay