Quick story: I don't drive because I have a fainting disorder. I sent my husband out for some kalkwasser because I have read it is beneficial to your tank in many ways, including helping with reducing cyano.\n \nWell, he came back with a golden head sandsifter ordered, a new powerhead ordered-my flow seems to be not adequate. I have dead spots where the algae(cyano) is, and some "red slime remover" to fix the problem until the others come in. (nice of the guy to recommend to him at , non refundable)\n \nI have checked my water parameters and the only thing up a bit is (still) my phosphates (reactor ordered-will be about a month though:() \n \n[B][U]So-do i use the super expensive remover while I wait for my powerhead and reactor?[/U][/B] It says it is coral, fish and invert safe...but, I am VERY hesitant.\n \nI am unsure about the sandsifter. I am already high on my stocking. The store (not the one i usually use) apparently made him pay for the fish upfront and will not refund it (he JUST paid for it within the 1/2 hour) but, I am free to (as the guy said when I called to cancel the order) just not pick him up. (gee thanks)\n \nI forgot that the store I usually use is closed today. So my husband (eager to please) tried a larger pet store chain. He meant well. but got screwed royally!