Calcium Levels

[kevin r.]

My tank (80gal) is about 3 months old and I'm starting to get some coraline growth. :joy: My calcium level tested out right at 400 mg/l. I think thats a little low, right ???? What levels to you reccommend for good algae/invert growth. Also, what calcium supplements should I buy/avoid (I would like to avoid setting up a kalkwasser drip). Thanks

 

[wwfstyle]

I keep mine between 450 and 500. I just use a small amount of Kalw. when it gets to about 400 or lower. Don't use much tho.

 

[mandarin w]

Calcium should be between 380 to 450. 420 is best. If you keep your calcium too high, you risk a battle between the alk and the calcuim and the ph. If one is too high it pulls the others down.