FWE Treatment Procedure
I had the dreaded flatworm over five years ago. I treated my entire system. When I tell you I had a plague of them, I kid you not. My ENTIRE sandbed, corals, rock, everything was covered with them.
I siphoned out every visible flatworm for three consecutive days.
The day I was planning to actively treat with FWE I removed my carbon. I replaced it with fresh carbon to prepare for the post FWE treatment.
Then I dumped three full bottles of FWE into my 75g tank. The flatworms began dying and blowing all over the tank within 15 seconds. I continued to siphon them out. I used a powerhead to direct the water flow with the FWE in it into those hard to reach places. I siphoned them out for at least a half hour. I used new cheap pantyhose ($.99 from WalMart) on the end of the siphon tube to catch the dead FW's, and not have to replace 40-50 gallons of water from my 100 g system (75g tank + sump & fuge).
After diligently siphoning out as many dead FW's as I possibly could. I then siphoned out about 25g of water (25% of the system volume). I replaced it with freshly mixed (the day before) saltwater, turned on my carbon and prayed. Every single coral closed up like a clams a$$. I thought for sure I killed everything.
Within the next 24-36 hrs, every coral opened. I lost no coral, no fish. I did lose one feather duster.
On the third day after the initial treatment I repeated the same process. I dumped three full bottles of FWE into the tank again. I once again had my carbon off line and refreshed. Not one single FW could be seen blowing around.
I put the carbon back online, nothing even closed up. Let me repeat this, NOTHING EVEN CLOSED UP after treating with three (3) FULL bottles of FWE. This single 'non-occurrence' was proof positive to me that the FWE has no ill effect on the systems inhabitants. The fact that not even one single coral closed up or appeared stressed indicated to me that during the first round of treatment it was the dead FW's toxins that caused the corals to stress and close.
One week later, I repeated the exact same procedure and treated with three more full bottles of FWE and my powerhead blowing into all crevices. Again, not a single FW was to be found. Again, the coral did not show any signs of stress whatsoever. I did another 25% water change. New carbon. I've been FW free for about 5-6 years.
I went through this detail to explain why I now treat EVERY SINGLE ADDITION to my tank with FWE. I temperature acclimate every coral with a minimum of three drops of FWE into every single bag with coral. I slosh it around in the bag and let it sit for the temperature acclimation period of about 20 minutes. Then into the tank.
I've never seen another FW in any system I run.
FWE should be in EVERY REEFERS possession.
swimmer