Once again (I feel as though I start a lot of threads this way), I wasn't sure what forum to put this in, but I'm hoping that pleco afficionados know a bit about algae. As a short introduction, about two weeks ago I set up a 55 gallon tank. I moved a male betta and a female BN pleco from their cramped 10 gallon home into their new spacious abode, as well as the filter so as to cycle the tank. Because it is a clean tank (not new new, it was used, though not for the last 20 years or so), I had been feeding my pleco a bit extra to make sure she wasn't hungry (that is, until her little constipation stint, more on that in the other thread). She kept our last tank spotless, though I know some have mentioned that plecos aren't the best for algae control. Anyway, tonight (right after feeding her, of course) I noticed algae growth on the front pane of the tank. Unfortunately it's already fishy bed time, so pictures will have to wait until tomorrow, but even then it's so fine I'm not sure it will be visible to the camera (I may have to stick a white tupperware lid behind it or something). It's green and looks like very fine hairs or groups of hairs, less than a centimeter long. It's only in the center of the front panel. My questions are: 1. What causes sudden algae growth? Where would the spores have come from? 2. Last weekend I introduced a piece of driftwood. I know driftwood sometimes sports a white algae, but could this green algae be related? 3. Do you happen to know (currently based on description, though again I will upload pictures tomorrow) what type of algae this is? Is there anything else I should do, besides letting my pleco take care of it? 4. I read in a different thread that plecos are actually omnivores, while I thought they were pure herbivores. So tonight, I tossed in a sinking shrimp pellet (very small) and she absolutely went nuts. (As an aside, there is actually less protein (by 5%) in the shrimp pellets than in her algae wafers, since I know lots of protein is bad for plecos.) Two nights ago I put in thin slices, one of each, of cucumber and zucchini, so I think she's pretty well fed at this point. I was thinking of not feeding her this weekend so she would go back to eating the algae, as she used to be diligent about munching on the walls in her previous tank, though as I said I've been feeding her a bit more. Knowing that she had a little feast a few days ago, and that she's a little on the pudgy side (either due to constipation, eggs, or...being pudgy) would that be alright? When I clean the tank on Saturday I plan to wipe off the majority of it, but I would like her to go back to doing her job (after all, what am I paying her for? ) 5. Initially I had planned to add a nerite snail once my tank was cycled. However, I then became afraid that there wouldn't be enough algae to go around. Now, knowing about the sudden bloom covering a good two square feet or so, would a nerite (with my roughly 2"-long pleco) be alright? We'd also, if possible, love to get another pleco (a variety that doesn't get very large). Would this work? If so, would we need to choose between a nerite or another pleco? Thank you for any advice!