
Update: WARNING! The heater is still working great after a few months but (as later reviewers have pointed out the design of the heater is very imperfect and I caught my fish trying to get into the heater through the side holes. I wanted because of that not wasting a great heater so i put it in a media bag and put it in my aquarium it still heats my aquarium and my fish cant get in I got myself a small 1 watt BOEESPAT aquarium heater as a "shot in the blue". Bought the 50W as it is an unknown brand.Fully adjustable heaters for very small aquariums are hard to find and this one also has a digital display which is a great feature too.Not knowing the manufacturer I wanted my fish didn't risk it so I installed a heater in an empty 3.5 gallon hospital aquarium to test it and I'm enjoying it prepared! I placed three different thermometers in the tank: a digital one next to the heater - on the back of the tank, a glass thermometer on the front of the tank, and a sticker in the corner. After a few hours of heating, all thermometers showed roughly the same temperature (and in different places in the tank, which is often not the case with small heaters). The temperature has not changed for 5 days (I have that much). I have NO issues with suction cups. Once I placed them correctly, they stayed in place. I set the temp a lot higher (90F) and touched all the outer parts of the heater and none of them felt hot so I'd say the fish is able to swim. (besides lounging, as we know, there are plenty of fish that like to nap right next to the heaters). Overall, I'm impressed with this first week of use. Now let's move on to testing strength and durability. The time will show!

Hardy Leaf Black Forest Asian Java Fern Potted Live Water Aquatic Aquarium Plants For Freshwater Fish Tank By Greenpro Microsorum Pteropus
39 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

Tetra HT Submersible Aquarium Heater: Efficiently Regulate Temperature with Electronic Thermostat
9 Review

Faucet water heater with display
13 Review

๐ U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
22 Review

Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
68 Review

Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review

๐งฒ Efficient Magnetic Fish Tank Cleaner: KEDSUM Floating Clean Brush with Handle Design
34 Review