Flatworm Exit....very disappointed with test results

nanoguy

Premium Member
I found out last week I had flat worms in my system. It started with finding a couple crawling around the front of the tank and has been getting worse over the past week. I don't see any on my rocks or sand bed but I'm sure they are there. I decided to try to attack this issue before it becomes a real problem so I went out to my local LFS to pick up a bottle of Salifert's Flatworm exit yesterday.

Before running it my system (SPS dominated, some zoanthids, rics) I figure I give it a test run before dosing my tank with this stuff. I used a specimen container with about 1.5 cups of tank water and siphoned out about 20 flatworms from my glass (all I could find). Along with the flatworms, I also placed an acro frag and a zoa frag in the container which had some small snails and an assortment of pods on it.

I placed 1 drop of FLE into the specimen container. Keep in mind this is a super heavy dose compared to Saliferts recommended dose of 4 drops per 5 gallons...........this is one drop to 1.5 cups!!!! Immediately after dosing I can see that the flatworms started to craw around at a faster rate as if something was irritating them. After waiting 30 minutes, I inspected the container and saw no deaths....all flatworms were still alive but did not seem as active anymore. I waited another 15 minutes to see what would happen (following Saliferts protocol).

After a total treatment time of 45 minutes I did not notice any dead flatworms.....only dead pods and stunned mini snails. The acro and zoa frag was still doing well. The acro was still polyping and zoa completely opened. I proceeded to ad another drop to my 1.5 cups of water now totaling 2 drops and waited another half an hour.

30 minutes have gone by after the 2nd drop, and I have achieved at most a 20-30% flatworm death rate. I waited another 15 minutes and my death count have increased another 20% or so totaling a 50% death rate with 2 drops in 1.5 cups of water. The frags are still doing well, the mini snails have now rolled onto its side and appears to be dead.

Long story short, I added a "total of 5 drops in 1.5 cups of water," total treatment time of 6 hours, and only achieved a 90% flatworm kill ratio with a super duper heavy dose. Once again Salifert, recommends 4 drops per 5 gallons!!!! The only good news that came out of this test was that the 2 frags I placed in the container did not seem to have been affected at all......bad news = all pods and snails dead, some flatworms still alive.

I'm sure if I followed the recommended dose by Salifert the possibility of pods and snails surviving is highly probable but the increase in % of flatworms surviving will also go up. I'm holding out on dosing my system with this stuff. Salifert must have changed their formula or something because I have no idea how others have achieved complete system eradication of flatworms using FWE.
 
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Why do you wan to get rid of them?

Per Fenner:
"The free-living (i.e. non-parasitic) species of Flatworms, the Class Turbellaria are more of note... True, some of them do trend toward being pests when their numbers get out of control... and can be problematical should you provoke a poisonous variety to the point of toxin release... most are benign organisms that are best ignored.

http://www.wetwebmedia.com/flatworms.htm


The only flat worms I worry about these days are the AEFW's. I used to have the common red acoel flatworms, they got to plague numbers for a short time then disappeared on their own...haven't seen one in at least three years.


***edit***
Do you like wrasses? Maybe adding an active wrasse like a 6-line would be a good option to help keep their numbers reasonable.
 
It took me three treatments at double strength to get rid of mine. I lost some snails and a brittle star, but I did finally get rid of the flatworms after the third treatment.
 
<a href=showthread.php?s=&postid=14396463#post14396463 target=_blank>Originally posted</a> by Ritten
It took me three treatments at double strength to get rid of mine. I lost some snails and a brittle star, but I did finally get rid of the flatworms after the third treatment.

I'm glad it worked out for you. I'm going to start the treatment according to the instructions provided with FWE. How long did you wait between treatments? Any water changes in between? How about some system and livestock specs? How long has it been since the treatment?

I will probably start the whole system treatment according to the instructions provided tonight and will post my results as they come. I hope I can achieve the same positive results like you and some others that I've read.
 
i recently treated my 125DT. worked fine for me. i added the treatment, waited about 3hrs, then did a 20% water change. added 4lbs of carbon. and done. worked fine for my larger system
 
<a href=showthread.php?s=&postid=14396511#post14396511 target=_blank>Originally posted</a> by nanoguy
I'm glad it worked out for you. I'm going to start the treatment according to the instructions provided with FWE. How long did you wait between treatments? Any water changes in between? How about some system and livestock specs? How long has it been since the treatment?

I will probably start the whole system treatment according to the instructions provided tonight and will post my results as they come. I hope I can achieve the same positive results like you and some others that I've read.


It's been many years for me so I will try to recall (I'd guess at four years ago). I seemed to me that I waited four days in between treatments and if I recall correctly, I did a 25% water change in between treatments. (I ran a lot of carbon after treatment.) The tank treated was a 54 gallon with zoos and softies (no sps). I had two clown fish a firefish, royal gramma and six line wrasse, snails, hermits, the brittle star (which died). was affected immediately. I also had a whole lot of flat worms so I am surprised that the toxins released did not kill more inverts. I don't recall the corals or fish being traumatized by it at all, but again, no sps. I have been flat worm free since then, but with no guarantine tank, very careful who I have purchased the few corals have bought from since then.
 
I treated my 110g recently.

I began by first removing all the flatworms I could see/get to. Then I under-dosed the tank (due to the horror stories I had heard).

Within about the 2 minutes the FW's began to move around very fast and within 5 minutes they began to float around. Again, I removed as many of these as i could and also had carbon running. After about 2 hours, I did a 30% waterchange.

Everything was fine.

The next morning I woke about 8 and checked the tank at 9. Before I even got to open the garage door, the first thing I could notice was the smell. Absolutely disgusting. The tank had a slight yellow tinge and the skimmer was overflowing with bright red/orange skimmate. There were obviously many more FW's hiding IN the rocks than I could imagine.

I quickly did a 60% waterchange from the display tank and completely drained and refilled the sump.

The tank still had a slight smell to it, but only if you put your nose right up to the tank. However, the only thing I did lose was my 5 blue-eyed cardinals. Nothing else.
 
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