Retuks;3491549; said:i said glass cleaners, not filters.
about algae not being the main diet of species i have here. fly down here to hawaii and observe the loose ones in the streams for yourself. since moving here from england i gained a heap of knowledge over the years from mere observation that i was very skeptical about at first.
the stream near my house is a good example as theres nothing but swordtails, chinese cats, and gobi inhabiting the water with them. perhaps snails then? idk.
Older specimens will even predate other fish. Scavenge dead material (fish/plant/crustacean). They eat many many things. I have kept many of the "janitor" and "glass cleaning" species such as P. pardalis, H. plecostomus and P. gibbiceps and I fed them a suitable diet and the tanks had plenty of algae. Not because they were too big or the plecos too small or few, but because I gave them an appropriate diet. Many other keepers who actually feed their fish will tell you the same. Protein based foods are important to them (you will often have them chasing other fish "going after the slime coat" if they stand a good chance of getting it) and it's generally like sweets to them- they can't get enough of it and you have to limit it with them because too much is detrimental. They will go mad for veggies and plant material. Feed them these things and they wouldn't even bother with algae most the time. Cleaner fish (be it algae or anything else) is a term that most pleco keepers are trying to see die out.