When the Pond Gasps (and the Garden Breathes Back)

Late August has a way of revealing what's really working and what's just barely holding on. This week, our pond taught me a humbling lesson about balance—and our garden responded with the kind of abundance that makes you forget about the failures, at least for a moment.

The numbers tell the story. When I reset the sensors yesterday, the oxygen reading came back at 4.15 milligrams per liter. That's like watching someone breathe shallow and fast—technically alive, but stressed. The fish are fine for now, but I could feel the system tightening, especially as temperatures peaked at 22.4 degrees Celsius. Warm water holds less oxygen, like a sponge that's already wrung out. This is where curiosity meets necessity. I've designed a venturi pump—essentially a clever way to suck air into water using the flow of the water itself—and I'm sending the design to the 3D printer this week. It's satisfying to design your way out of a problem rather than just buy a solution.

But here's what kept me smiling: the pond plants have gotten so lush and vigorous that they're crowding each other. This is the opposite problem from what most gardeners face. I've been doing careful removal work, thinning them out to give the fish room to move and the water room to breathe. It's like editing a garden—you have to cut the beautiful things sometimes.

Above the waterline, things are humming. The strawberries are multiplying at an almost suspicious rate. My June-bearers are throwing out runners and daughter plants with real enthusiasm, and I'm starting to see a window I hadn't planned for: if these juveniles mature on schedule, we could have a productive harvest by February when everbearing varieties are at their peak. The beans have given us two solid handfuls already, the eggplant is actually fruiting, and we're watching five pepper buds fatten up alongside one that's ready to pick. The cherry tomatoes, though—they're done. Sometimes things just don't make it, and that's the honest part of this experiment.

We also refilled the reservoir to just over three inches, which feels like topping off the system's cup before the final stretch of summer heat arrives.

The oxygen problem feels urgent, but in a good way. It's pushing me to engineer a real solution. By next week, we'll know if the venturi pump lives up to its promise. Until then, we're watching, measuring, and removing plants so the fish can breathe easy.