Aquarium projects, particularly leak detection


I’m a new aquarium owner and I’d love to see some simple projects you all have done with Smartthings and aquariums. I realize control of the aquarium ecosystem is not a good idea, but I have a particular interest in leak detection strategies.

For probably irrational reasons, I have a fear of leakage of water from my aquarium. I’d like to set up some Smartthings methods to detect (and maybe control) leakage if it occurs. As a new aquarium owner, I’ve come across a number of horror stories of failed tanks and of overflow of the filter systems if the filter media blinds with debris.

Two ideas I’ve had:

  • Water sensor underneath the aquarium to detect any leak.
  • Water sensor in the hang-on-the-back filter (or immediately outside the filter) to detect overflow, potentially tied to the electrical outlet for the filter pump to shut it off in the event of a leak detected.

My aquarium is on a steel stand in the corner of a carpeted room. I’m not sure how I’d get good leak detection on the carpet, other than to have some sort of catch pan under the aquarium in to which I can drop the leak detector leads.

Thoughts would be appreciated! Thanks!

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There are a few off-the-shelf products out there that does leak detection. I did the DIY version though and I use it also for my aquarium.

I have 2 filters and 2 banks for lights connected to a zwave strip. The lights are on a schedule but not the filters. I do use a minimote for the filter so I can turn it off and automatically turn it back on after 10 minutes when feeding :fish:


There have been a few project reports on aquariums, not too many, though. You can find them by using the quick browse lists in the community – created wiki. There’s a list in the project reports section for pets that includes the aquarium projects.

I’ve created DIY leak detectors, but simply used two wire leads that drop to the same level in a sump.

I may try to create the style wrapped around a narrow diameter rope. This would allow the sensor to cover a much broader area.

Since it’s on carpet, I might still need a tray or something under the stand to catch the water if it leaks, and place the sensor in that tray.

The z-wave power strip sounds like a cool idea. I could turn things on/off if I chose, but only if I had confidence that the power strip would return devices to their former power state after a power outage.

Getting some ideas, thanks!