I treated my 200 gal SPS tank with Salifert eXit today. Prior to adding the eXit I siphoned out as many flatworms as I could find. I then threw 1.5 liters of carbon into a fresh 100 micron filter bag than all my return runs into in my sump and refilled my Phosban 150 with carbon to the max. I gradually added a whole bottle of eXit, good for up to 300 gal according to the instructions, into the tank. Flatworms began to die immediately and I spent the next two hours collecting them with a net.
All in all there were hundreds of dead flatworms collected. None of my livestock, fish, snails, shrimp and crabs or my SPS or LPS seemed to suffer. I am happy and relieved. I plan to treat the tank again next weekend just to be safe.
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