واقي السخان سوبرفيش

My cichlids haven't cracked a single heater since I snapped this guard on—the plastic feels sturdy enough to take a knock from a rock or a tail. Fits my 2.4cm glass tight, and it's nice not worrying about shards in the tank anymore.

My heater sits right where my cichlids like to dig, so this guard has been a lifesaver for preventing cracked glass. The plastic feels sturdy and the 2.4cm opening fits my older heater perfectly, even though it's a different brand.

Fits snugly over my heater's glass tube without any wobble, and the plastic feels sturdy enough to handle a curious pleco bumping into it. Installation was a breeze and it doesn't block the temperature reading at all.