Hi. 9 years ago. They're in a 110 gallon tank. Anyone have an idea about their growth rate? How fast are baby bushy nose plecos supposed to grow? At the time I didn't even know what a bristlenose pleco was supposed to look like and I thought it was a weird name for them since they didn't seem to have a "bristled-nose". Ask 10 pleco owners about how big and fast their plecos grow, and you'll probably get 100 different stories. A male is on the left, a female is on the right. How long does it take for bristlenose plecos to grow? I have a albino pleco with spots on it (I'm not sure there exact species but I can put up a picture later). Thanks. Bristlenose’s do a good job on attached algae and only grow to 4 to 8 inches depending on the species. Hello, what a fabulous no-trivial-trimmings-article, thank you! 9 years ago. They're both about 2". What do you think? how big do golden nugget plecos grow to ,,im looking for one for my 4 ft tank but not wanting one thats gonna b too big in a few yrs thanks x Anyone have an idea about their growth rate? The bristlenose pleco can be bred easily if a couple issues are addressed. They're in a 110 gallon tank. It is an omnivore and comes in the colours of orange, tan and white. The name Common Pleco is used for a lot of different brown-mottled Plecos that grow rather big in the aquarium. Akeath. Compared to other plecos who grow to 1 to 2 feet, that is small! And still others need to move to ever larger tanks and then a pond. Some of them can certainly get that big. I was just wondering how fast they grow and how long will it take for it to reach full size? I don't feed them wafers or zucchini, just letting them graze on driftwood and whatever algae's in the tank - but will add some variety if it would make a big difference. 4 Answers. So, I now have a 4cm fit & healthy regular bristlenose pleco. Log in to reply to the answers Post; Will. Answer Save. If a few aspects of their care aren’t done 9 years ago. How fast or how big will it grow? Some seem to be content to stay under a foot all of their lives. Relevance. That's NOT a bristlenose, or even a close relative. How fast are baby bushy nose plecos supposed to grow? Now, the bristles on the females tend to be much smaller than those of the males, and usually only grow out of its mouth, or around the mouth. I have had my babies for about 3-4 months and the largest are only about two inches and there are no noticeable bristles. Bristlenose Pleco is a type of fish which is also known as Busy Nose Pleco and comes from the rivers of South America. Plecos are not recommended for tanks under 10 gallons. I have had my babies for about 3-4 months and the largest are only about two inches and there are no noticeable bristles. Most species get to 5 inches, although a few like the Starlight Bristlenose reach 6 inches.