Monti nudis and potassium permanganate

[FNHFan]

I have discovered monti eating nudibranchs in my tank, which is really strange because I have not added any coral to this tank in a year. Regardless, I read Eric Borneman's reefkeeping article suggesting that using 50mg/1L concentration of potassium permanganate solution will kill them as well as their eggs. I placed all montipora that could be removed from my tank into the solution for 2 hours as prescribed, and then moved them to a quarantine system. I repeated the dip a week later.

I STILL have nudibranchs on these corals, checking them today. Does this treatment actually work, or is it even more snake oil, like CoralRX, Revive, and the like (none of those dips really work - look at what's left alive and swimming in your dip container after you remove them - A LOT of things)?

Thanks for any information you can give.

 

[FNHFan]

Wow, 46 looks, and no one who has looked has had to treat for these nudibranch before?

 

[joe22883]

I never used the stuff but heard it works. It can also kill your coral or atleast brown them out. Did you try to scrape off the eggs and any nudis you seen while dipping? The eggs will not be affected by the dip and can be on rocks not attached to your montis.

 

[swanny]

FNHfan, I went throught the same thing. I tried all kinds of dips and scraping eggs and nothing worked. I bought a yellow coris wrasse and he keeps everything in check. Hunts for Nudi's all day long. They are inexpensive and are a fun fish to have.

 

[RichardinMa]

I waged a major battle against these nudis and sucked them off the montis twice a day. I thought I got rid of them but they soon were back. I did find that the tlf revive does kill them. The problem is that they will be throughout the tank and hatch too small to see with the naked eye. I finally added a melanurus wrasse to the tank and have not been able to find a nudi since.

 

[dahenley]

i fought his for a year, and ended up cutting 90% of my monties out and throwing them in the trash.....

it was the only solution.
and now i dont have them or have to worry any more.

 

[mc-cro]

nudi's are the devils spawn. I got them last year, and after about 2 months of QT and dips, I just threw all the monti's in the trash

 

[FNHFan]

I never used the stuff but heard it works. It can also kill your coral or atleast brown them out. Did you try to scrape off the eggs and any nudis you seen while dipping? The eggs will not be affected by the dip and can be on rocks not attached to your montis.

I really can't see the eggs, even under magnification. The article I had read stated that the permanganate dissolves the eggs too, and yeah, it browns the hell out of the corals.

 

[dahenley]

i started dipping every 3-4 days (at least 1 time a week)
and thought i had them beat... but NO....

and i used a tooth brush and scrubbed the bottom of my monties just to be sure..
and fish work! they just hide the problem as long as they can keep up.....