Calcium carbonate is difficult to maintain in solution, especially at near saturation levels... I had the same issue with a bottle of Liquid Reactor a while back, but you can just add RO/DI water & give it a good shake to get it back in solution...
__________________
135G Mixed Reef. Bullet 2, 25 gal refugium, 2 X250W MH + 4X 96W PC\'s, DIY Calcium Reactor, Coralife 1/6 HP Chiller, Phosban, Tunze, 2 closed loops & SQWD\'s, Seios, Coralife 4 stage RO/DI & a bunch of other expensive gadgets... I may never retire, but I'm gonnahavahelluvanaquarium!
|