if you have a sump, you can use a in-sump skimmer. That will give you peace of mind from overflowing. Anyway, i got a CPR Bakpak if you are looking for external.
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75G mixed reef / 33G sump / EuroReef CS8-1 / Tunze 6206, 6055 / Eheim 1250 / AI Hydra LEDs / 2x54W T5HO / keep stocking more 
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