Penn-PlaxTherma-Temp Floating Aquarium Thermometer – Mercury Free – Safe for Freshwater and Saltwater Fish

PENN-PLAX Therma-Temp Floating Aquarium Thermometer – Mercury Free – Safe for Freshwater and Saltwater Fish

API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored

PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic