Angelfish tank size - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 4 Old 11-01-2012, 12:39 PM Thread Starter
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Angelfish tank size

Is a 45 gallon (36L x 24H x 12W) big enough for an angelfish or two?
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post #2 of 4 Old 11-01-2012, 02:11 PM
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I would just have probably 3 or if you can get a hold of a mated pair then that would work too in that size tank.
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post #3 of 4 Old 11-01-2012, 04:47 PM
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A mated pair would be okay in that, if you can find one.

Otherwise though, it may be a bit too small. Angelfish like to shoal and I wouldn't go with under 4 of them. A four foot tank is best, which I believe is 55 gallons or larger. Mated pairs are fine in a 3 foot tank.

They do get big though, I have 5 in my six foot tank and two formed a mated pair. They chase everyone else in the tank into a corner when they spawn so I'm glad I have the room for that.
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post #4 of 4 Old 11-01-2012, 04:53 PM
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I agree. Angelfish should never be in groups smaller than 4, and 5 is better. Reason being that the dominant male in the group can become quite a bully, and harassment of subordinate male(s) can be brutal and frequently lead to death. With 4 or 5 the aggression (which is natural) will be spread out more, and less likely to cause serious injury or death--though there is no guarantee. And a 4-foot tank is minimum for 4 or 5 angels.

The 3-foot is fine for a mated pair, meaning a male and female that have bonded.


Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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