What types of fish cooperate and live well with common goldfish?

If you get a cold water angle fish that is fine. Here is a list of fish that do well with commons and goldfish in general. Mind you some of these fish get quite large as will your commons while others will remain small.

Barbs - Several readily available species of Barbs are tolerant of temperatures in the sixties, or even lower. easy to care for, suitable for a community aquarium. These are: Rosy Barb (Barbus conchonius) Gold Barb (Barbus schuberti), Green Barb (Barbus semifasciolatus), Two Spot Barb (Barbus ticto).

Bloodfin Tetra - Both the standard Bloodfin (Aphyocharax anisitsi), and the False Bloodfin (Aphyocharax dentatus) tolerate temperatures in themid sixties. are easy to care for, and are quite hardy.

Blind Cave fish (Astyanax fasciatus mexicianas) Does well in temperatures of 64-77 and is a peacefull community fish

Buenos Aires Tetra (Hemigrammus caudovittatus) - they do well with temperatures mid sixties. Standard varietiesand albinos

Croaking Tetra (Coelurichthys microlepis) - easy to care for and are suitable for community tanks.

Guppy (Poecilia reticulata) - many attractive variations

Hillstream Loach es - Not all of them like cool temperatures, but do well with temperatures in the upper sixties.

Hypostomus plecostomus – pleco, common pleco, janitor fish, hearty even salt tolerant up to brackish water, also prefers cooler water under 76 degrees.

Native Fish - A variety of North American native fish . Virtually all of them tolerate cool water. Availability varies from state to state, as do laws regarding which species may be legally kept in home aquariums. Keep in mind that some will become too large to keep in a standard aquarium.

Pearl Danio (Brachydanio albolineatus) - Like the zebra danio, this fish is very hardy and easy to care for. It will tolerate temperatures into the mid 60's without difficulty, and is easy to find. They are larger than zebras, but need not be kept in schools.

Weather Loach (Misgurnus angullicaudatus) Can do well with temps in the fifties, and it makes an excellent candidate for a coldwater tank.

Wimple (Myxocyprinus asiaticus) Freshwater Batfish. This is a unique fish to have. mid sixties.

White Cloud Mountain Minnow (Tanichtys albonubes) - Easy fish to care for.

Zebra Danio (Brachydanio rerio) mid sixties, and are very easy to care for. Long finned species are available, as well as a popular leopard spotted variety.

ide or orfe, Leuciscus idus Great for outdoor ponds when you can find them

Red tail sharks if keeping the water below 78

Rainbow or orange throated Darter, Etheostoma caeruleum grows about 4 inches kept under 77 degrees feeds on algae.

Northern Redbelly Dacer, good under 75 degrees and a good algae eater grows around

Stickelback three spine Gasterosteus aculeatus (16 different species) water temps vary depending on species

Orange spotted sunfish Lepomis humilis size around 5”

Flying Fox - 4.5 inches bottom feeder 70-81 degrees water temps

Flame Chubs - Hemitremia flammea great in ponds stays small and can tolorate even 83 degree temps in a tank.

Sailfin Shiner (Notropis hypselopterus),

Common Rudd The Rudd (Scardinius erythrophthalmus)

Chinese Minnow Phoxinus oxycephalus)

Bullhead, Cottus gobio great bottom dweller and algae eater under 77 degrees

Red Shiner prehistoric looking sturgeon

fallfish (S. corporalis) 18 in

Provided you have a large enough tank, you are limited to other Goldfish. You cannot keep Tropical Fish, like an Angelfish, with Goldfish. Goldfish are coldwater fish, and Tropicals are warm water fish.

Bear in mind, for Goldfish you need 10-20 gallons of tank for the first one and 10 gallons for each additional. You also need a filter rated for twice the size tank you have, because of the huge amounts of waste they produce. If you have a 30 gallon tank with a 60 gallon filter, that's a good set-up, but it's maxed out. Any less than that, you need to start saving up for a bigger tank and filter.

Common goldfish are generally peaceful. The best fish to go in a tank with them would be other goldfish. Koi are also great in a tank with them, as long as you have the space needed. I have a comet with a telescope goldfish and they work great together. Smaller fish such as the minnow are great too. Good luck.

Best option - Other Common, Comet or Shubunkin goldfish. (The slim bodied types.)

Angelfish is a BAD choice.

Also make sure you have a large enough tank to support the fish you buy, common Goldfsih can live for 20 years and grow to a foot long.

Ian

wiki answers recommends this:

Weather loaches (dojo) are a good choice, so are related fish like Kulhi loaches. plecostomus catfish, coreys and other bottom dwelling fish work well. We have had some honey gouramis with our goldfish for years and no problems.

ehow says this and the link is to a video with suggested tank mates:

Many goldfish will attempt to eat their tank mates, regardless of compatibility,

http://www.ehow.com/video_4978481_buy-goldfish-tan...

Goldfish Utopia recommends three fish and is listed as one of my sources. White cloud mountain minnows, Red rosy minnows, Dojo (weather) Loach.

i have 5 white Mountain cloud minnows with mine they get on extremely well and since they are smaller and are schooling fish they need to be in groups of 5 at least

bettas , carps(you'll need a bigger tank),comets....and mny other avoid moff varieties