Calcium reactor which material to use

[graziano]

Now that it is impossible to find Jumbo Corallina to dissolve in the calcium reactor, which media do you recommend to use in a full SPS aquarium? ARM, Dolomite, Dastaco2, Aragonite......

 

[reeftivo]

if you can find the coarse reborn then go for that. it dissolves at a lower pH. the finer reborn around now is not as good as the coarse stuff IMO. it has some debris in it and clogs faster. The ARM in the second pic is good too.