Well, I bit the bullet and treated my reef with Flatworm Exit this morning. So far, so good......
With 20 gallons of fresh saltwater waiting.... I began by vacuuming every flatworm I could find using a 3/4" vinyl hose which was routed back into the sump and filtered with a micron sock. I thoroughly rinsed the sock several times....
After all visible flatworms were gone, I dosed with 1 drop Flatworm Exit per gallon (90) and then continued to vacuum the dieing flatworms that began to emerge from EVERYWHERE
They were literally crawling out of every nook and crany of the rock
. I vacuumed, and vacuumed, and vacuumed, and vacuumed, and vacuumed.......... I would stop to clean the sock every 15 min or so.....
After about an hour, I inspected the rocks and glass to find that there were still a few living flatworms... *sigh* So I decided to dose another 90 drops (I had read that many other reefers had to double dosed to completely irradicate them) and resumed vacuuming for another 30 minutes. Once I didn't see anymore worms, I then did a 20 gallon water change, added a LOT of fresh carbon, and replaced the polyfilter.
I plan on doing another 20 gallon change in the morning.
8 hrs post treatment: the clam was a bit withdrawn at first but is okay now and I lost a dozen or so mini-brittle stars. All the corals, anemones and clam look great but the urchin nor snails are eating and all the fish are hiding ........
I will give another update in the morning.