Fecalizers will work okay. However, all parasitologist these days and a lot of veterinarians have moved to a centrifugation method using a saturated sugar solution 'cuz it provides a more accurate test (it is now considered the gold standard). I did a just a trial comparison myself of the two - the float tended to recover 'bout 1/10th the amount of eggs as a fecalizer. Also, some of the heavier eggs may not be seen on fecalizers d/t the lower SG of the solutions used.

Bottom line, if you find eggs on the fecalizer - great, you know what parasites you have. If you don't find them, they may be there but in small enough numbers that you aren't seeing them.
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Russ

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