My Plecostomus feeding upon a peeled slice of cucumber

Although Plecostomus are omnivorous, the bulk of their diet is algae. They will eat undesirable algae and will generally not harm plants. Provide an aquarium that is well established with lots of natural algae growth. Also feed supplements including algae wafers, green foods and sinking pellets to make sure they don't starve. Some supplement that can be offered include vegetables like blanched spinach, lettuce, and peas as well as live worms, small crustaceans, and insect larvae. These fish may graze on the plants if they are not feed sufficient amounts. It is best to feed them in the evening just before turning out the lights. Note: they have not been observed to eat blue algae.

Jump to Feeding - Commercial Foods: Plecostomus require special food. They cannot live solely on algae in the tank in most cases or leftover fish food.

Grows to 5", which is a nice size for most aquariums. Many types of Plecostomus are nocturnal, but Rubbernose Plecos are often seen during the day energetically scavenging the bottom for bits of food. These are wild fish collected by responsible collectors in Columbia.

I'm seeing a oversight amongst a lot of fish-keepers with Plecos

Jul 23, 2016 - It seems like when I give them food the other fish eat it all Your article is very interesting. Two questions though. You and several commenters refer to drift wood. What is different about driftwood, verses natural, untreated, wood from a local tree, and would the species of tree matter. The other thing is about adding salt to the water. I have had many different species of fish for more than fifty years, and of course have tried to treat illnesses, and problems. Almost every article mentions adding salt to the water to improve the health of the fish, and often as a treatment. In fact, I understand that it is often used for food fish, because there are no big concerns about antibiotic withdrawl, and is widely approved. Many articles and text say that freshwater fish need added salt, just not as much as “salt water fish”. On the other hand, I wouldn’t think that the rivers and ponds in the natural waters of plecs would have a very high salt concentration. Do you recommend adding any salt to aquariums for plecostomi, if so how much is healthy?

I've only heard of zucchini used as pleco food

Hikari Tropical Algae Wafers for Plecostomus & Algae Eaters serve as a complete daily diet that is fortified with vitamin supplements, for the hard-to-feed plecostomus, algae eaters and other species of bottom feeders. This algae-eater and plecostomus food contains a perfect balance of select premium ingredients that promote proper fish growth. In addition, this daily diet is formulated with mostly vegetable materials that plecostomus and other algae eaters prefer, making it a delicious meal that they are bound to enjoy. Developed, produced and packaged under strict quality control in Japan, these Hikari wafers make for a high-quality and premium food that you can feel good about feeding to your bottom-feeding and algae-eating aquatic life. Specifically developed for easy feeding, these sinking algae wafers come in the form of uniquely shaped discs that have been designed to sink rapidly while also retaining their one-of-a-kind disc-like shape. This provides less-aggressive species with a chance to gnaw away and have plenty of access to the nutrition these wafers have to offer. In addition, these sinking balanced wafers will not dissolve or cloud the water.

It's true, plecos love their cucumbers..