The active ingredient in both PAM and NIX/RID is permethrin, which has a half-life of 30 days as long as it is kept out of direct sunlight. When used as a yard/kennel/barn/stable spray for ticks or fleas in an outdoor sunny area its half-life is a week. So, if used in a tank with a UV bulb I wouldn't count on it being effective for the full 30 days.
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