PENN-PLAX The Penn Plax Therma-Temp Standing Thermometer is an all glass thermometer with a weighted base to keep it vertical as it bounces around your aquarium. Can also be buried in substrate for fixed positioning. Features a "safe zone" for most tropical fish.Weighted base for vertical alignment"Safe zone" for most tropical fishHelps you maintain a safe & comfortable environment for your fishContains no mercury.BRAND NEW. Powered by eCRATER . List your items fast and easy and manage your active items.
