20 gallon fish? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 15 Old 04-14-2013, 05:15 PM Thread Starter
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20 gallon fish?

Hi I have a new 20 gallon tank that has been running for over a month now and I was wondering what type of fish I can put in it
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post #2 of 15 Old 04-14-2013, 05:53 PM
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There are all sorts of small fish that can go in a 20 high. Is the tank cycled?

125 - BGK, chanchito cichlid, pictus cats, silver dollars, palmas bichir
125 - cichlids (severums, bolivian rams, chocolate), rainbows ( turquoise, red), loaches (angelicus, zebra, kuhli and horseface), plecos (BN, RL and clown), denison barbs, tiretrack eel, pearl gouramis, betta
90 - Congo tetras, african knife, upside down cats, spotted ctenopoma, kribensis, delhezzi bichir
2.5 - betta
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post #3 of 15 Old 04-14-2013, 06:54 PM
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What are the dimensions of your tank? There are 20 highs, 20 longs and 20 regulars. The actual dimensions of your tank will ultimately depend on how many fish you can get.

I, personally, would go with a coupla schools of barbs or tetras as my main swimmers and then get a school of corys as my bottom swimmers.

Brace Yourself.....Winter Is Coming
75 gallon Angel Paradise Updates:http://www.tropicalfishkeeping.com/f...gallon-220330/
Fluval Spec V Steel crowntail betta, 3 zebra danios,
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post #4 of 15 Old 04-14-2013, 07:06 PM
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What are the parameters of your tap water? Some fish have very specific needs, others less. The GH (general hardness) and pH is what we need to know; you can find this out from your municipal water folks, likely their website will have data posted.

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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 15 Old 04-14-2013, 07:48 PM
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Quote:
Originally Posted by FishyFishy89 View Post
What are the dimensions of your tank? There are 20 highs, 20 longs and 20 regulars. The actual dimensions of your tank will ultimately depend on how many fish you can get.

I, personally, would go with a coupla schools of barbs or tetras as my main swimmers and then get a school of corys as my bottom swimmers.
I'm only aware of 2 twenty gallon sizes - longs (30x12x12) and highs (24x12x16). What's the difference between a high and a regular?

No matter the dimensions, I don't think a 20 is large enough for more than one school of barbs (and even then not big enough for most species), unless you are including rasboras since they are also cypranids. I know a lot of people keep corys in small tanks, but I would not keep them in less than a 30 inch long tank.

125 - BGK, chanchito cichlid, pictus cats, silver dollars, palmas bichir
125 - cichlids (severums, bolivian rams, chocolate), rainbows ( turquoise, red), loaches (angelicus, zebra, kuhli and horseface), plecos (BN, RL and clown), denison barbs, tiretrack eel, pearl gouramis, betta
90 - Congo tetras, african knife, upside down cats, spotted ctenopoma, kribensis, delhezzi bichir
2.5 - betta
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post #6 of 15 Old 04-14-2013, 07:59 PM
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I consider highs as just that, actual tall tanks. I never call regular tanks high. To me, it adds a bit of confusion. Depending on the size of the fish and how big the school is, there can be a coupla schools.

Example: 6 neons and 6 Skirt Tetras. Corys don't really do a whole lot of long range swimming, so I think they'd do perfectly fine in a 20 gallon. I've seen em so some, but mostly up n downs.

Brace Yourself.....Winter Is Coming
75 gallon Angel Paradise Updates:http://www.tropicalfishkeeping.com/f...gallon-220330/
Fluval Spec V Steel crowntail betta, 3 zebra danios,
Fluval Spec V - unnamed dumbo plaket betta, 3 zebra danios
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post #7 of 15 Old 04-14-2013, 07:59 PM
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Quote:
Originally Posted by jaysee View Post
I'm only aware of 2 twenty gallon sizes - longs (30x12x12) and highs (24x12x16). What's the difference between a high and a regular?
There are those two sizes as well as a 20 xhigh (20X10X24). I'm thinking that's what FishyFishy89 meant, but just got confused with the names.
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post #8 of 15 Old 04-14-2013, 08:03 PM
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Quote:
Originally Posted by blackwaterguy View Post
There are those two sizes as well as a 20 xhigh (20X10X24). I'm thinking that's what FishyFishy89 meant, but just got confused with the names.
20 high is the standard 20 gallon size. I think there's a 20 hex too. I didn't know that there were extra highs. Not sure why anyone would want one, to be honest

I've kept corys in tanks from 10 gallons to 90 gallons - that's what's influenced my feelings on the matter.

125 - BGK, chanchito cichlid, pictus cats, silver dollars, palmas bichir
125 - cichlids (severums, bolivian rams, chocolate), rainbows ( turquoise, red), loaches (angelicus, zebra, kuhli and horseface), plecos (BN, RL and clown), denison barbs, tiretrack eel, pearl gouramis, betta
90 - Congo tetras, african knife, upside down cats, spotted ctenopoma, kribensis, delhezzi bichir
2.5 - betta

Last edited by jaysee; 04-14-2013 at 08:06 PM.
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post #9 of 15 Old 04-14-2013, 08:03 PM
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Example of a 20 gallon tall:
20 gallon tall fish aquarium - complete - $65 (Moorhead) for Sale in Fargo, North Dakota Classifieds - AmericanListed.com

I also don't know why someone would want a tall tank. But I believe the companies are taking advantage of the uneducated fish owners. "Let's create a tank that holds more gallons but is space economical." Someone in an apartment or dorm could benefit from it. The fish won't, but I don't think that's what the companies are thinking about :/

Brace Yourself.....Winter Is Coming
75 gallon Angel Paradise Updates:http://www.tropicalfishkeeping.com/f...gallon-220330/
Fluval Spec V Steel crowntail betta, 3 zebra danios,
Fluval Spec V - unnamed dumbo plaket betta, 3 zebra danios

Last edited by FishyFishy89; 04-14-2013 at 08:05 PM.
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post #10 of 15 Old 05-03-2013, 12:17 AM Thread Starter
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it's just a normal marine land 20 gallon fish tank
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Last edited by ao; 05-03-2013 at 12:41 AM.
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