Between 12 and 18 inches--or 30cm to 45cm if you live in a metric country. They will do this no matter the size of your aquarium, so don't listen to the guy at the pet store who will tell you they will stop growing in a too-small aquarium.
They are quick growers and will reach around 5" fairly rapidly. Bristlenose Plecos (Ancistrus temminckii) can get as large as 8-9" in their lifetime of around 20 years though if they do well.
depends on the size of the tank/pond. I've see one in a pond that was 2 feet long.. not kidding you.
The common pleco can grow up to 2 feet, but some of the smaller species (like the bristlenose) can grow to 12 in.
It can grow to about 6 inches or more depending on how big your tank is.
Bristlenose Pleco is a type of fish which is also known as Busy Nose Pleco and comes from the rivers of South America. It is an omnivore and comes in the colours of orange, tan and white.
Only if the Pleco is big enough
Goldfish should only live with goldfish except for a few exceptions such as a bristlenose pleco or apple snails for example
Pleco - Suckermouth catfish , Siamese Algae Eater, Albino Algae Eater , Ancistrus - Bristlenose pleco ,Oto Catfish , Plecostomus ( Very aggressive and go well with Oscar ) All algae eaters go well with Oscars.
No, you should only keep goldfish with goldfish (with very few exceptions such as a bristlenose pleco, apple snail or weather loach for example)
The tank would not be overstocked with what you have suggested, provided you have a filter running all the time and you do a 50% water change every week.
big
the bigger the tank the bigger it gets
Yep! They'll ignore each other. Better have a big tank ready for the pleco when it grows, though.
It all depends on the size of the fish. You should have 1 gallon per 1 inch of fish. So if you have a 2 inch fish, its two gallons of water, and so on and so forth.
Pleco - Suckermouth catfish , Siamese Algae Eater, Albino Algae Eater , Ancistrus - Bristlenose pleco ,Oto Catfish , Plecostomus ( Very aggressive and go well with Oscar ) All algae eaters go well with Oscars.
I have a pleco and a Glofish together.