Community Tank 30 gallon - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 5 Old 06-21-2012, 04:31 PM Thread Starter
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Community Tank 30 gallon

How many fish and what would be good for a community tank. Should I buy 2 of every species I decide on. I lov e Cory catfish. They are so cute.
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post #2 of 5 Old 06-22-2012, 10:20 AM
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I've moved your post out of the other thread to start its own thread, since it is not directly related to the other.

To your question, corys are shoaling fish that absolutely must be in a group. The more the better, but in a 30g you could easily have 7-12. They are very social and need each other. If you want just one species, a minimum of five is recommended, or more as I said. If you decide on two or more species, i would aim for no less than three of each species. Some prefer their own species to socialize with, others seem to socialize with any cory regardless of species, so 3 will ensure they have some of their own.

As for other fish, what are your water parameters, meaning general hardness (GH) and pH? Some fish have preferences, some are more adaptable. You can ascertain the GH from the water supply folks, they may have a website. They might also tell you the pH, but you should have a kit for testing pH as this is an important parameter that can change in a fish tank.

Byron.

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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post #3 of 5 Old 06-22-2012, 10:59 PM Thread Starter
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Can I mix the different corys or should I stick with them all the same? Appreciate your help, you are very informative. :o)
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post #4 of 5 Old 06-23-2012, 01:05 PM
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Quote:
Originally Posted by kathymalaspina View Post
Can I mix the different corys or should I stick with them all the same? Appreciate your help, you are very informative. :o)
Thank you. Yes, you can mix corys, I already mentioned this when I said you want a minimum of five, and if 2 or more species try to get no less than 3 of each species. They all get along, no issues there, but they are less stressed and thus healthier if they have some of their own species around them.

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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post #5 of 5 Old 06-23-2012, 01:51 PM Thread Starter
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Originally Posted by Byron View Post
Thank you. Yes, you can mix corys, I already mentioned this when I said you want a minimum of five, and if 2 or more species try to get no less than 3 of each species. They all get along, no issues there, but they are less stressed and thus healthier if they have some of their own species around them.
Thanks Byron will remember that,
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