water, plants
Something's happening
Well, I’d be lying if I said I hadn’t been fastidiously checking in every day, but here’s the first sign that something is actually happening. I tested the water again today and there’s a definitive difference in the nutrient load, indicative that biology is happening. The phosphate has halved, going from 10 ppm at planting down to 5 ppm on day four.

| 2 Jul | 6 Jul | |
|---|---|---|
| pH | 9 | 9 |
| Ammonia | 0 ppm | 0 ppm |
| Nitrite | 0 ppm | 0 ppm |
| Phosphate | 10 ppm | 5 ppm |
That is the oxygenators doing what they are supposed to do: pulling dissolved phosphate straight out of the water column and taking it away from the algae in the process. Four days is a short window and one halving is not a trend, so I want to see it hold. Ammonia and nitrite are both still at zero, and the pH has not moved off 9.
I also added a little water ramp made from some old sun-bleached bits of wood I found on a beach years ago, so that any bugs and critters that fall in have a way to climb back out. Not much has changed from day one to look at, but this is a patient game we’re playing here. Wait and see.
