I noticed the other day that one of my female platys has like whats look like the end of a little red thread hanging out of her anus. She really isnt eating either and looks kinda skinny. She is the only fish in my tank that i noticed that hanging out of their anus and the only one acting funny but i figured if one has it that they all have it!! Does it sound like the problem i have? I have a few items on ebay that im looking at and i really need someone to help me choose which would be the best treatment for my fish. The LFS dont have fish meds with the ingredient "levamisole" in it so i would have to order it from the internet. Is that leva stuff the only thing that will get rid of these stupid worms or would something else work the same or work better then levamisole crap? BTW its a 20 gal tank with a few platies, a few dwarf gouramis, a BN pleco and a few ghost shrimp so it would have to be something that wouldnt effect them as well! Here is links to the items i am looking at and it would be a HUGE help if someone could help me pick out which one of these items would work the best to get rid of these worms!!
http://www.ebay.com/itm/Fish-De-Wor...161?pt=LH_DefaultDomain_0&hash=item27cd9b1489
http://www.ebay.com/itm/250-ML-AZOO...200?pt=LH_DefaultDomain_0&hash=item231caec178
http://www.ebay.com/itm/Levamisole-...t=LH_DefaultDomain_0&var=&hash=item27cadc7166
http://www.ebay.com/itm/Fish-De-Wor...161?pt=LH_DefaultDomain_0&hash=item27cd9b1489
http://www.ebay.com/itm/250-ML-AZOO...200?pt=LH_DefaultDomain_0&hash=item231caec178
http://www.ebay.com/itm/Levamisole-...t=LH_DefaultDomain_0&var=&hash=item27cadc7166