Some of you may remember that some time ago I cleared the frogbit from the SA tank to allow me to tackle the duckweed. Well one thing led to another and along the way I forgot why I had them in the first place. Earlier this year I made a concerted effort to clear the duckweed and re-introduced some frogbit which now covers more than 50% of the surface. Most significant observations:
- I can pretty much see all of my cardinals all the time. I have enough that you can't miss them, but many would often be down in the plants. Now they are happy to stay out in the open (from the perspective of my chair ) because they are secure in the fact that nothing is going to swoop from the sky to catch them. I don't actually have birds in my living room but you don't just suppress thousands of years of instinct. I may even add a few, although according to sites like aqadvisor this tank is already well overstocked and under filtered
- I have 2 pencilfish (nannostomus marginatus). The group was decimated in late 2019 when my sids became sexually mature and went on the rampage leaving only two alive. After I got a new tank for the sids I did occasionally think about replacing them but had more or less made up my mind just to let them live out their lives as their behaviour was so similar to the cardinals. They lived in the lower half of the tank, often concealed by plants and only came to the surface to sleep once the lights went out. I assumed that this was for security because the group was so small that they adopted the cardinals as their own. Well I was only half right (it was for security), now they are back to spending almost all of their time at the surface and I am definitely going to order a few friends for them - say 15-20 so I will have fish at all levels of the tank.
- Watching the corys (c.paleatus) swimming upside down foraging amongst the roots is really cool ...