Guys, need some advice. I cannot get my CA above 250. My Mag is at 1440 Alk is 8-9. I used baking pwdr to raise ALK and lime water for CA. First time i used lime I over did with CA and got some CA snow. I cleaned pumps, stopped using lime until CA dropped to normal and since then it won't go above 250. I use liquid CA and Purple Tech to raise CA to no avail. All other tests showing all is fine. Softies and polyps doing great, hollywood stunner growing, birds nest and duncun are so-so.
Any thoughts?