how much is enough

[duke62]

okay i made 2 part today,my calcium is at 320 how much calcium should i put in to raise.my alkalinity is fine though its at 3.5. i dont know if its like my buffer a tbl spoon per 20gal or do u have to add this in cups.and what will this do to my alk.and this is a reef aquarium with soft coral

 

[Deanos]

Reef Chemistry Calculator

 

[duke62]

okay do i add water volume in sump

 

[Deanos]

Yes.

 

[duke62]

thank u deano