Majanos from Hell !!
- Thread starter montrealreef
- Start date
JetCat USA
In Memoriam
on the tank or the cooking rock????
tank = 20% every two weeks
cooking = 100% monthly
tpdpercula
New member
I have only encountered them once in my tank. Started with one and spilt to three. I used kalk paste twice and rid my tank of them for good. I guess I was just lucky because I tried the same thing with my previous Aptasia problem and it worked great at first but they ended up always coming back. A couple of months ago I noticed they (Apatasia) were coming back so I bought 5 Peppermint Shrimp and a Copperbanded Butterfly. Well I have yet to see any Aptasia since.
kraash
New member
I had several hundred, and tried joes juice, it seemed to make them multiply more. I found that a small butane torch about the size of an ink pen with a tip temp. of +1200 degrees worked the best. I would just cook them until they turned black and crusty and all the tissue would pull or scrape off easily with tweezers. If there was any tissue left, the hermits seemed to take care of the rest. This was very tedious, but you can get pretty close to coral on the rock.
matt the fiddler
New member
wait. you pulled the rock out for the torch, right? it almost sounded like you did that in the tank....
JetCat USA
In Memoriam
i do 100% when cooking to keep nutrients at an absolute minimum. when just cooking to remove excessive nutrients that have accumulated in rock i let water testing determine when i do the water changes.
to rid the system of the majanos i did it every month, i didn't want the little bastages to have any available nutrients, i wanted to make dang sure they didn't survive.
to rid the system of the majanos i did it every month, i didn't want the little bastages to have any available nutrients, i wanted to make dang sure they didn't survive.
Horace
New member
Well what seems to have killed the majanos I could get to was using a salifert syringe while the pumps were off to put a large pile of kalk paste (full 1ml) on each majono. I did it WITHOUT touching the majano to make it close up. After putting the pile of kalk on it, after about 2-3 mins it will close up around the pile of kalk. I then took another syringe and injected lemon juice into the side of the big bulb of majono after it closed around the kalk. This seemed to work quite nicely. A couple days later I went back in the tank with some tweezers and plucked off any tissue left on the rock (only a tiny bit left). I dont see any signs that those peticular majonos will ever come back. Now the ones behind the rock that I cant get to.... those are going to be a problem 
. I guess I will just have to continue to keep killing the ones I can get to.
. I guess I will just have to continue to keep killing the ones I can get to.
JetCat USA
In Memoriam
Horace
the good thing (if there really is a good thing) about majano is they aren't like Aiptasia whereas any tissue left will regenerate, once you kill it, it's dead you don't have to pluck it with the tweezers. i used a #11 X-acto blade glued on the end of a skewer and stabbed it into the middle of them and twist it up like you would spaghetti, it'll kill them and they won't regenerate but as you said, it does nothing for the ones you can't get to. the stab and twist worked better when i was trying to control them then anything else, as the Kalk injections drove pH through the roof i had so many of them at one time.
the good thing (if there really is a good thing) about majano is they aren't like Aiptasia whereas any tissue left will regenerate, once you kill it, it's dead you don't have to pluck it with the tweezers. i used a #11 X-acto blade glued on the end of a skewer and stabbed it into the middle of them and twist it up like you would spaghetti, it'll kill them and they won't regenerate but as you said, it does nothing for the ones you can't get to. the stab and twist worked better when i was trying to control them then anything else, as the Kalk injections drove pH through the roof i had so many of them at one time.
northbay-reefer
Active member
I had mojano problem in my 180 years ago when my tank was grossly neglected. The things multiplied into thousands in my tank. What I did was taken the rock out starting one side of the tank, and start with one rock at a time. Removed the majono manualy using a bone cutter making sure to take a bit of the rock at the base to make sure the whole anemony was removed. The hard to get to place I used HOT kalk paste while leaving the rock out of the water for 1/2 hour before rinsing it and then place back into the tank. I did this religiously for weeks until all of the mojanos are gone. Their is nothing that will do the work for you so what it will take is alot of elbow greese and you just have to keep at it until they are totaly eradicated.
After the mojanos were gone, my mushrooms started to take off, 80% of my rocks were covered now that there are no mojanos to irritate them, so I had to do the same thing to get rid of the shrooms
... now my tank is full of beautiful sps
After the mojanos were gone, my mushrooms started to take off, 80% of my rocks were covered now that there are no mojanos to irritate them, so I had to do the same thing to get rid of the shrooms
... now my tank is full of beautiful sps 
bob21115
Member
I started with 5 or so Majano's in my 300 gallon. After a year or so of trying to kill them, I caused them to spread to around 5000. Long story short, I removed all corals I could(Majano's were or had killed a lot of them) then I put in a Raccoon Faced Butterfly. After a week of eating all the left over button polyps he ate all the majano's in the tank in another 2 weeks.
All attempts at killing them liquid or scrapping caused them to spread. I lost the butterfly about a month after the last majano was gone. I also put a Mertensii Butterflyfish, also known as the Orangetail Butterflyfish, or Crowned Pearlyscale Butterflyfish in the tank and I saw him eating them also.
All attempts at killing them liquid or scrapping caused them to spread. I lost the butterfly about a month after the last majano was gone. I also put a Mertensii Butterflyfish, also known as the Orangetail Butterflyfish, or Crowned Pearlyscale Butterflyfish in the tank and I saw him eating them also.
waterfaller1
New member
I find no reference to this fish..is this spelled wrong?
wentreefgirl
New member
waterfaller-Chaetodon xanthurus
http://www.peteducation.com/article.cfm?cls=16&cat=1871&articleid=1878
http://www.peteducation.com/article.cfm?cls=16&cat=1871&articleid=1878
waterfaller1
New member
Thanks wentreefgirl.I don't know about the whole butterfly idea, so scary. I feel the OP's pain. I have them everywhere as well. I have been doing some manual work to remove them lately. First I start with a lights off day, or two,[maybe just actinics} which seems to help move some towards the top of the tank in search of light. Then, on the day I will do some removal I do not dose CA, I do the alk part..but it seems to keep levels better if I skip the ca on that day. Then I bought one of those plastic lemon looking things with lemon juice, but it's organic. I mixed this up with ESV kalk powder, instead of water. I haven't seen them come back in the same place like I did before I started using the lemon juice instead of water. I'm just trying an all out war on them. I may not get them all, and they will most likely come back. But maybe I can just keep them back somewhat...one can only hope.
Klownfish
New member
montrealreef-
I feel your pain. I have the same problem, and it's been getting worse for years. I have some SPS, LPS, clams, and anemones. I've tried all the 'regular' cures, too. I've even injected the Majanos' with an 18g needle with Kalk, boiling Kalk, Joe's etc.
I just tried a new method, I don't know if it worked yet. It's Super Glue. Pull the rock out (if you can) and put a drop of Super Glue onto the mouth of the Majano. Put the rock back in the tank.
Those work when there's a few. Once they have a strong hold, it just doesn't seem possible to rid a tank of these pests. I don't think it's about bad water chemistry at all. Everything you do for your corals, just helps these pests to grow too! The water chemistry I have for my Purple LTA is working to fuel my Majanos.
***FWIW, I've heard Scats eat Majano's. I don't know, it's just something I've heard.
Jet seems to understand just how bad these can get... Perhaps starting with new rock, while "cooking" the old really is the only way to go. I'm starting to consider it myself.
I had considered trying those Butterfly Fish, but I would have to find new homes for my clams, LTA and RBTA.
I feel your pain. I have the same problem, and it's been getting worse for years. I have some SPS, LPS, clams, and anemones. I've tried all the 'regular' cures, too. I've even injected the Majanos' with an 18g needle with Kalk, boiling Kalk, Joe's etc.
I just tried a new method, I don't know if it worked yet. It's Super Glue. Pull the rock out (if you can) and put a drop of Super Glue onto the mouth of the Majano. Put the rock back in the tank.
Those work when there's a few. Once they have a strong hold, it just doesn't seem possible to rid a tank of these pests. I don't think it's about bad water chemistry at all. Everything you do for your corals, just helps these pests to grow too! The water chemistry I have for my Purple LTA is working to fuel my Majanos.
***FWIW, I've heard Scats eat Majano's. I don't know, it's just something I've heard.
Jet seems to understand just how bad these can get... Perhaps starting with new rock, while "cooking" the old really is the only way to go. I'm starting to consider it myself.
I had considered trying those Butterfly Fish, but I would have to find new homes for my clams, LTA and RBTA.
waterfaller1
New member
Oh..dear..I am embarrassed...
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