Both of the Sens are on Cobalt Flakes and NLS. They're also very active, although rather shy.
I cleaned up most of the algae yesterday, although there is a bit of dead algae left (light brown fluff on substrate), as the algae grows in layers, and with each new layer, the old one dies and leaves the brown fluff. I was able to sneak in a few pics of one of the Sens while it was on the newly cleaned substrate before it darted away (They're still somewhat shy of me).
To give an idea of how small these Sens are, the NLS they're eating is 1mm.
I cleaned up most of the algae yesterday, although there is a bit of dead algae left (light brown fluff on substrate), as the algae grows in layers, and with each new layer, the old one dies and leaves the brown fluff. I was able to sneak in a few pics of one of the Sens while it was on the newly cleaned substrate before it darted away (They're still somewhat shy of me).
To give an idea of how small these Sens are, the NLS they're eating is 1mm.