Have you tried....

[Dorinda]

Have you tried sea tab formula #28?
I used it years ago and never had to does calcium.
My corals did great. But now I'm back to reefing and was wondering if anyone else has used it. Anyone?

 

[Dierks]

I have never heard of this...

Can you tell us what it is/was?

 

[Trailermann]

I used it and it works as promised. Don't worry about freshness of the product. I bought the packaged tabs thirty five years ago and just broke them out!

 

[Dorinda]

I have never heard of this...

Can you tell us what it is/was?

It's white blocks. Slowly desolves calcium and trace elements.

 

[ahiggins]

I wouldn’t trust it my luck it would overdose my system lol