I just purchased a 150 gallon aquarium. How many goldfish can i safely keep?

Question

The dim's of the tank. 4 feet long, 30 inches tall and 2 feet deep. Thank's for all your help. Donna

Answer 1

15 Goldfish once fully grown would be the maximum, but the larger the fish, the more mess they make and the more clean you need. Try scanning through this site and compatability chart. There are many fish that don't require a heater, are easy to care for, and look nice
http://www.liveaquaria.com/product/categ.cfm?pcatid=830
http://www.liveaquaria.com/general/fwcompatibility_chart.cfm
A

Answer 2

That will depend on what kind. There are many varieties of goldfish out there, some can grow to be very large. Also are you sure your getting goldfish, and not tropical fish? Goldfish are a more dirty fish and that also needs to be taken into account for how many. You dont want to overcrowd them and get an overly dirty tank. Also with a new tank, add fish very slowly and not all at once. Get only a few and wait a week or two before adding more. You should also be prepared for loss of some fish.

Answer 3

150 Gallon Aquarium

Answer 4

Goldfish tend to grow faster than most other fish. It seems that the recommendation is one fish for every 10 gallons. Remember, the bigger the tank, the bigger the fish will get. Don't go putting 150 goldfish in the tank because they will quickly grow and the tank will be overcrowded. Better safe than sorry.

Answer 5

Ummm, goldfish do not grow only 2-3" tops. Fancy goldfish should grow as large as a grapefruit. And comets or commons easily reach over a foot in length. They need ponds. I would say around 5 fancies would be nice in the tank. Just imagine 5 grapefruites bobbing around in there!

Answer 6

I would just use one cause they are pissing machines and they mess the water up way too fast. Why Gold fish any way? They're cheapy low class fish! Unless you had say..... a homemade pond outside in your yard thats the place for goldfish...Get creative with some other types- there are so many out there that are so way cooler. Cicclids, Discus, Plackos, Angel, Ruby tail sharks etc.etc. and a tank that big you could even put things like sun fish, and regional lake fish. You may try to create a tropical rainforest tank and use the many breeds of fish from the Amazon. .

Answer 7

you can easily keep 15 -25 fish in this tank with good filtration
the problem is going to be the depth of the tank, fancy goldfish do not do well in deep (over 12") tanks and if heavy filtration makes the water current too swift it will wear the fish out and they will die
If you have any goldfish books you will note that the oriental breeders keep the fancy heavy bodied goldfish in shallow, less than 6", of water

Answer 8

Do you have your heart set on goldfish? When I had my
aquarium, I found the tank much harder to keep clean when
goldfish were added. Of course, that was my own personal
experience, but I thought I'd share this information. Hope it
works out better for you than it did for me.

Answer 9

The rule of thumb is 1 inch of fish per 1 gallon of water, so it depends on how big the fish are. with 150 gallons if you use 1 fish for every 3 or 4 gallons the fish will grow to fit the tank.

Answer 10

Goldies will grown to about 2-3" tops (unless they are fancy types which can get bigger).

I wouldn't go much past 50 to 75 to start. Make sure you start your cycling of the tank right, and do a fishless cycle!

Fishless Cycling
http://www.tropicalfishcentre.co.uk/Fishlesscycle.htm

Good luck and have fun!