Zodiac Flea and Tick Collar for Dogs PRODUCT REVIEWS PAGE 1 OF 1 Options Available: For Small Dogs Necks up to 15" Shop Zodiac Flea and Tick Collar for Dogs Rated 3 out of 5 by 5 reviewers. Rated 5 out of 5by JAG2Great tick collarWe don't have a flea problem, but we do have a lot of ticks and this collar works great! 05/11/2015Rated 1 out of 5by KerriTerrible!!!!Did not work at all. We are still peeling 3-5 fleas off a day 08/20/2012Rated 2 out of 5by poodle_runnerNot very effective for ticksThese collars may work for fleas, but they are not as effective for ticks as the Preventic collar. I guess you get what you pay for, as these are half the price of the Preventic which I am now re-ordering again. 07/05/2011Rated 5 out of 5by Rellie_multi_dog_and_cat_ownerThe only collar that worksZodiac collars are the ONLY collars that work on my dogs-I've tried them all. They don't have any adverse reaction. They do the job. I use the cat ones on my long haired cat too. 10/30/2009Rated 3 out of 5by leonberger_ownerAre three enough???I have a large dog. Two topical doses are not enough and trying three is not financially feasible. I thought that I would try the collar. It also seems more prudent in case of overdose: it's easier to take off a collar. I'm up to my third collar and three seems to be the charm: there are only a few fleas left and I hope that they are feeling poorly. Now that I know it works, I will be ordering in groups of three. 04/11/2009 Page 1 of 1 1