I would just examine your fish once a week, just get a good look at them and you will see little dots on them. Also get a few cleaner shrimp.
10 gallon salt water 3 damsels
20 saltwater mini reek yellow tang green mandrin goby, clownfish, yellowtail damsel, coral banded shrimp, skunk cleaner shrimp, lots of corals and fiji rock
75 gallon cycling soon to be reef tank