Pleco Eggs

[dawning]

I've got 4 plecos in one of my aquariums and recently I've noticed a big pile of some sort of black material. I'm not sure what it is, but it looks like it could be eggs. I've noticed that two of my plecos both do tend to hang around that area more often now than before.. And I've noticed one of them sitting on this stuff a few times. Sound like eggs?

 

[Michael Roth]

not my picture