It's been about a year and a few months of running x2 300w heaters and I decided to swap them out for some brs heaters. While cleaning the 2 heaters under the sink I noticed 4 suctioncup holders kept leaching out and making a mess, both are 2 different heaters and 2 different types of suction cups. Just thought I'd share this.
Happy reefing!
Happy reefing!