Can I put algae eaters in my pond?
Similarly one may ask, can I put an algae eater in my koi pond?
Most sucker fish, or algae eaters, are tropical or semitropical fish from South America. They are not well-adapted to extremely cold water, which is the perfect environment for koi. A few varieties of sucker fish can survive mild winter weather changes, but none will withstand below-freezing temperatures.
Also know, can I put my pleco in my pond?
A Bristlenose Pleco. Overall, plecos should not be left to overwinter outdoors if you don't live in a warm region. To help plecos survive winters, you could utilize a pond heater or bring them inside to an indoor pond or aquarium, provided it's large enough to house this hefty species.
Koi (aka Nishikigoi) A koi fish's ability to help eat algae often is overlooked as a benefit. Algae is not the favorite food of koi, but in the absence of other (tastier) food, koi will eat algae and plants as part of their diet; especially during winter months as food is more scarce.