
Have been using them on my 75 gallon for a while now. Maintains a constant temperature so it's easy to see on the display and adjust if needed. This is a lot easier than trying to swap out the ones that have temperature control inside the tank.

π Fluval E300 Electronic Heater - 300W Advanced Aquarium Heater for Tanks up to 100 Gallons (A774)
9 Review

Accumulative electric water heater Thermex Ceramik 50 V, white
11 Review

YukiHalu Mini Submersible Aquarium Heater With Thermometer And Temperature Controller - 25W, 50W, 100W, Or 200W Options For 5-40 Gallon Fish Tanks
25 Review

Convector Electrolux ECH/T-2000 M, white
21 Review

FISH PROS Fine Mesh Handle
3 Review

π Enhance Aquarium Maintenance with hygger Carbon Fiber 6 in 1 Cleaning Tool Kit β Algae Scraper, Scrubber Pad, Sponge, and Telescopic Handle for Optimal Fish Tank Cleaning in Saltwater and Freshwater Environments
5 Review

π Enomol Gravel Vacuum - Aquarium Water Changer and Fish Tank Cleaning Tool Kit, Universal Siphon Pump for Quick Aquarium Water Changing
5 Review

π 1-Count Container of Glass Aquarium API Algae Scraper
4 Review