additive question

[Rampy]

Does any of you have used Sea lab N 28 blocks to mantain the minerals, calcium, stronium, trace elements...? Any comments about this product? Can I use this to avoid kallwaser?

[Aiptasia]

I haven't. I don't think i'd be too keen on using a mineral block to replace trace elements. There are liquid suppliments out there that would probably work a lot better for you. I'd suggest the following product lines:

 

Seachem's Reef Essentials pack

B-Ionic suppliments

C-Balance suppliments

 

They contain liquid trace element and alkalinity suppliments in correct proportions to maintain your reef tank. Kalkwasser is messy and caustic. By using good quality test kits and these newer liquid based additives, you can avoid kalkwasser altogether.