Aefw preventative measures

scubasteve

Distinguished Member
Joined
May 4, 2014
Location
Cambridge, Ontario
We all hate the dreaded AEFW. The best way to prevent is quarantine and dip but there have been some recent discoveries with existing products that have a beneficial benefit as well that help to prevent and we all know even with qt and dip these evil buggers can still mange to slip through. People with wrasse and strong healthy coral usually just live with it as a fact of life and the wrasse and healthy coral keep their population low, but 1 power outage could change that overnight.

So my standard for years was always to cut off plug and encrusting part and remount to new plug, dip with expel-p or flatworm exit (levamisole) to stun any nasties and make them easier to blow off, then dip in Bayer (Imidacloprid) and qt redipping every couple days for a couple weeks.

We know levamisole is very reef and invert safe and the only bad effect is the toxins released from moving and dying flatworms and planaria. We also know alone it will not kill AEFW but it does disrupt their life cycle stage so they can not develop from larval to adult and end up dying before munching coral. One of the other neat benefits is that levamisole actually increases sps slime coat which is a main defense for preventing AEFW infection to begin with as they struggle to stay attached and is a main reason why they target smooth skin acros that have a thinner slime coat and weak or dying corals that also have a thin slime coat.

Well just so happens I noticed bite marks on one of my corals in my 10 gal a couple months ago. Of course within a week that coral was covered in bite marks and started on another 2. Most my frags are already encrusting onto rock so I did not really want to remove them. Sad part is this is where most new sps keepers completely give up after nothing seems to work. Well 1 month later I can't find any adults with a turkey baster any more and all the bite marks have healed with no new ones.

The only thing I did was treat my tank at 4x the dose of flatworm exit. Recommended is 4 drops per 5 gal increasing 50% every 30 minutes till flatworms detach and blow around with just powerheads then blow with baster and remove as many as you can, brine shrimp net works great. I used 16 drops per 10 gallon (which is what it took for them to detach the first time) every 3 days for 4 weeks. After the first 2 treatments they stopped blowing off but I basted every night for the month. I'm now dosing 1 drop per gallon once a week and some odd things have happened but it's beneficial. Aside from the thicker slime coat that I already expected from other people reporting it does that dosing weekly I have also noticed my zoas seem much happier and reach out less, my gorgonians almost never put their polyps away and my acans are so puffy now they bobble almost as much as a bubble coral.

I am now sticking to this weekly dose as the benefits are definitely worth it. All my snails are fine even the baby lightening dove snails and it has not seemed to kill any micro feather dusters which I did expect to die. Pods are still all over my tank so it has not seemed to harm them either and urchin is still good and barnacles on snails lol.

And to anyone worried about sticking hands in a and treated with dewormer, light neutralizes it fairly quick and your carbon removes it within hours so turn of flow to carbon while treating and best done at lights out time for best effect.

Never have I had such an easy time with in tank AEFW and 0 predators. Unless I find an adult or eggs soon I'm pretty sure they are gone and will stop using just to see if they even come back or it toasted them and how the corals react to it gone because I have never had acans inflate so much in an sps dominant low nutrient tank.

We might actually be able to keep people in the hobby easier.
 

scubasteve

Distinguished Member
Joined
May 4, 2014
Location
Cambridge, Ontario
Update time.

Have not lost a single frag or colony. 98% of the bite marks are fully healed and recoloured and the few left are just colouring. No new bite marks on the few that were heavily infected. Blowing off with turkey baster and not had a single adult blow off in a while now. All eggs I could spot have either shriveled away or hatched but no new ones found anywhere. No signs of rtn or stn. Going to continue the dose scedule a couple more weeks then will stop dosing and see if they come back.

Snails seem to all be doing fine. Micro feather dusters are still alive, gorgs, acans, zoas don't seem bothered at all. Pods are still alive in big numbers too so it did not wipe them out which I actually expected to happen. They are tough little buggers tho.

As for the aefw after dosing they are basically paralyzed and even with gentle blowing fall right off to be sucked up or netted if the fish don't eat them first. Looking at the corals you wouldn't even know there are aefw in the tank and growth is still great. I'm just really happy the 1 recovered because it was my ARC magic dragon from frag garage. On a side note my jf fox flame and goldenrod anacropora and green slimer were untouched. They really liked the arc magic dragon and strawberry shortcake and were also quick to munch the pink cadillac. Everything else stayed safe being closer to the powerhead I think.

So even tho flatworm exit does not kill them, as long as you use a stronger dose you can remove the adults easily that cause the damage and it appears to break their life cycle dosing. We will know in a couple months whether it wipes them out over time or just does a really good job at keeping numbers low and slime coat thick.

Wanted to get pics but phone not good enough to show tiny flatworm bites‍♂️ might have a couple of the worst ones but for the most part it just looks faded in colour.. Will ad some of the corals in my tank post soon. Many have a lot of new points and much bigger in size and thickness. Zoas growing like weeds too and going to have to cut acans soon. Probably split each in half.
 
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