Eek, Leeches!

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Heh, long time no see!

Anyway, last night i was giving one of my main tanks a good clean, my plan was to move my hillstream loaches into another tank so i started to remove loads of the large rounded rocks in the tank to go in another tank. To my shock, i discovered loads of leeches under a lot of the rocks- these particular ones are very small (about half a cm long) and a dark grey/brown color. I hate them, they freak my out "shivers". So my new plan of action is to kill the leaches in the tank.

What i do know is that leeches can apparently be very difficult to eradicate from tanks, and that most anti parasitic meds will probably kill them. However i've never encountered leaches before in any of my aquariums ever and i know that anti parasitic meds can vary a great deal in how effective they are at killing certain parasites and things like leeches. So i was wondering if anyone here who has experience/s getting rid of leaches can offer me any advice here as to what are the best things to kill them off with?

The tank in question also has amano shrimp and snails, i can remove them from the tank and put them in another while treating the main tank if that helps. I don't want to strip the tank down and boil everything etc as i don't have anywhere else for the fish to go and i have a lot of small young fry in there which i don't want to expose to cycling tank conditions, so i want to avoid meds which harm the biological filtration of the tank too. I also don't really want to take out/get rid of the plants, as i have a lot of established plants growing directly on stuff like bogwood in the tank, which have taken ages to establish there.
I don't know how long the leaches have been in the tank for, i haven't moved the rocks in the tank for months so the leaches could have been in there for a long time. I dunno how the leaches got into the tank, however i suspect it was probably via plants, as there are few new fish in the tank and all of the new fish that have been introduced to the tank over the 2-3months were quarentined and are in fine health. However the fish seem in good health and i've never seen a leach on any of the fish, soo...What do you advise i do in this situation? Any help/advice/info is much appreiciated :good: .
 
are you sure there leeches and not external parisites?
are they kinda grey with stripes or spots?

if they are leeches and are brown or black with no markings then just smash as many as you can find and go get a med from your lfs to kill the ones that you cant see. and make sure there are NO leeches on your fish. if there are use tweezers to pull them off carfully.
i had them on my flathead catfish one time in my pond. worked pretty good except i had to pull them out of his gill plates wilst not getting stung by his stingers.
 
are you sure there leeches and not external parisites?
are they kinda grey with stripes or spots?

if they are leeches and are brown or black with no markings then just smash as many as you can find and go get a med from your lfs to kill the ones that you cant see. and make sure there are NO leeches on your fish. if there are use tweezers to pull them off carfully.
i had them on my flathead catfish one time in my pond. worked pretty good except i had to pull them out of his gill plates wilst not getting stung by his stingers.


Yeah they're definately leeches, they look almost exactly like these ones;

http://www.klmbio.com/samples/leeches.jpg


I haven't seen any on the fish though...
Something i was wondering: Can snails get leeches which only target snails and not leeches?

Unfortunately my lfs sells no anti parasitic meds whatsoever, so i'm looking to get some meds of ebay but i need specific names for meds to do this which people have personally found effective in getting rid of leeches?
 
how bif are they? sure they arent flatworms (planarians)? if they are no more than about 1cm long, thats what they usually are...
 
how bif are they? sure they arent flatworms (planarians)? if they are no more than about 1cm long, thats what they usually are...


They are about 0.5-1cm long (although difficult to say since they were really stretchy looking critters) and are dark grey/brown kind of colour with no patterning or anything. They were mostly clustered under the rocks in the tank. Are there flatworms that sound like this description :unsure: ? The substrate in the tank is fine white silica sand, i didn't find any of the critters on the substrate itself, just stuck under the rocks.
 
In the US there is a product called Clout that works for both planaria and leeches. I'm not sure if it's avaliable in the UK though...
 
Nope not harmful, normally found as a result of excess food (not implying anything mind you)....

Theres a few fish that'll eat them, obviously after depriving them of their usual food source for a while.
Gourami would probably do the job nicely, then again i would have thought the Hillies would too :dunno:

Careful with the whole leeches thing, some can feed off fish.

Yep, Clout would do either or, although probably unneccessary with Planaria, Clout contains trichlorofon.
Althought from what little i've read about it, you have to be extra careful when treating with anything containing trichloforon.
 
You can probably kill them be bleaching your tank. Then doing a complete water change. Don't forget to take out your fish first though, lol.
 
Nope not harmful, normally found as a result of excess food (not implying anything mind you)....

Theres a few fish that'll eat them, obviously after depriving them of their usual food source for a while.
Gourami would probably do the job nicely, then again i would have thought the Hillies would too :dunno:

Careful with the whole leeches thing, some can feed off fish.

Yep, Clout would do either or, although probably unneccessary with Planaria, Clout contains trichlorofon.
Althought from what little i've read about it, you have to be extra careful when treating with anything containing trichloforon.


Thanks for the info :good: . I can't find anymore of the critters for now, but i think you could be right with the flatworm thing. I will watch the tank carefully and see if i can find anymore, however, if i find a single one on the fish then its medication time. But for now, if they're harmless, i'll leave them be. The rocks in the tank were trapping a lot of shrimp poop from the amano shrimps which is probably what encouraged the flatworms to stay and breed, i'm getting some stronger filtration for the tank and re-organising the decor so the decor doesn't trap as much waste from now on :thumbs: .
 
Planaria in my experience are harmless to fish, but I like to get rid of them because they multiply so quickly :good:.

P.S. Ack!!! My computer is messing up... Sorry, I thought you weren't done with this post :rolleyes:! My computer shows me the posts from when I visited last(I really need to figure that out). I thought you were still on "Are these flatworms harmless to fish?" :blush:
 

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