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post #1 of 4 Old 06-17-2013, 08:39 PM Thread Starter
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50 gallon community

I just got a 50 gallon tank. I think these fish are ok together but can someone help me? I am going to get 2 angelfish, 1 red tail shark, 4 cory catfish, 1 dwarf gourami, and one molly. The only concern is with the gourami. I read that the angelfish can be aggresive to them?

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post #2 of 4 Old 06-19-2013, 01:42 PM
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Originally Posted by truman View Post
I just got a 50 gallon tank. I think these fish are ok together but can someone help me? I am going to get 2 angelfish, 1 red tail shark, 4 cory catfish, 1 dwarf gourami, and one molly. The only concern is with the gourami. I read that the angelfish can be aggresive to them?

If you have not already bought your fish I would suggest you note the following:

Angelfish are predatory agressors. They will lie in wait of prey, so if you have any very small fish in your new tank they will certainy attempt to eat them. They will also bully your Dwarf Gourami which may result in its death. Angelfish are naturally aggressive as are many cichlids. So it's either the Angelfish or The Dwarf Gourami. If you go for the Dwarf Gourami you will possibly buy a male because of its bright colourng. You need to provide it with a heavily planted tank and be aware that it will collect plant debris and and build a bubble nest which it will protect in the hope that it finds a female with which to mate. They can play havoc with less sturdy plants by tugging off leaves. It woul be cruel to keep the Gourami without any plants (preferably floating) as it will be unable to find a home.

Personally I would only keep Angefish with other cichlids.

With a community tank you need to consider three levels: the surface area fsh, mid-water fish and bottom dwellers. Community tanks always look better with schools of fish. I would be inclined to stock a 50 gallon community tank with say 6-8 Cardinal Tetras which will swim around the surface area and 6-8 Neon Tetras which will swim in the centre of the tank and 4-5 Corydoras. All these fish are schooling fish and will provide more interest than single fish. The red-tailed shark will grow quickly and are also aggressive in protecting their territory and usually voracious at feeding time - so not an ideal community fish with smaller species. I have a juvenile in a community tank, but as he grows I will transfer him into another tank with much bigger fish.
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post #3 of 4 Old 06-19-2013, 03:23 PM Thread Starter
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Do you think it would be ok to keep the angelfish with the other fish but leave the gourami out?

Last edited by truman; 06-19-2013 at 03:33 PM.
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post #4 of 4 Old 06-19-2013, 04:02 PM
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No, I think you have other problems here.

First, I would forget the Red Tailed Shark. While a very attractive fish, it needs a 4-foot tank with no other substrate fish. Even then, as they mature, some individuals become very nasty indeed, taking a dislike to certain upper fish, stripes I believe. So your angels might have trouble, and of course the corys.

As to angelfish, two is never advisable unless they are a mated pair. Angelfish are shoaling fish that live in groups, and they form a specific "pecking order" with a dominant male, submissive males and females. With sufficient space and a group of 5 or more, this usually works well. But never have 2 or 3 (except the mated pair) because one if a male will almost certainly decide to hound another male, and if the other is a female (one or both) and the male decides not to accept her, trouble again. "Mated pair" means the fish select each other and bond, usually for life. Read more in our profile. http://www.tropicalfishkeeping.com/c...calare-188457/

As Jarowa correctly noted, angelfish and gourami do not always work. Both are very similar, the males are highly territorial.

On the molly, this fish requires moderately hard or harder water. Angelfish and corys are soft water fish, though they can manage (some cory species will, some won't) in moderately hard water. I just point this difference out, since I don't know your parameters. I personally would have molly in their own tank, as a small group or with some other livebearers, with moderately hard water of course. Molly will not last in soft water.


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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