A few weeks ago, the rainy season started, this means deluges every day that wash tannins into the tank from surrounding foliage.
Even with daily water changes I can't keep up with the tannins and they are so thick I haven't been able to see the tank inhabitants unless they brush close up against the front glass.
The Dieffenbachia roots became so long and flowing they started to clog the overflows, so the plant had to be moved to the front of the tank.
And the sumps are also targets for rain dripping tannins.
I hope to remove the papyrus from the sump and transfer them to the 50 gal once its fixed.
Do you want all those tannins? I think I'd put a rain deflector up.
Is there much wind? We're getting unusual wind patterns of cool air.
I think cold melt water from the arctic is cooling the west coast.
But maybe hot plumes in volcanic regions are twisting the atmosphere.
The tannins are thicker than I'd like for viewing, but it seems they are a regular seasonal occurrence here, so I wonder if the temporary anti- bacterial properties help purge the fish of certain natural microbial parasites, or populations or bacteria that could become pathogenic if left unchecked.
I'm surprised that the pH of the tank hasn't dropped in any significant way.
Normal pH is 8-8.2, and when I tested for pH the other day, it was much closer than I expected.
I ran both low and high range pH.
The jug of tank water is just before I started daily diluting.