I am continually amazed when I see someone say that bettas are OK in unheated, unfiltered water.
Bettas come from Thailand in Southeast Asia. Thailand was formerly called Siam (hence the name Siamese fighting fish). The temperatures there are typically in the 80's most of the time...including the water.
In the wild, bettas live around 5-7 years. In our "care" they are lucky to make it 2-3 years in unheated, unfiltered, small bowls.
Bettas need a heater and should have a filter. All fish kept in a home aquarium should have a filter on their tank. Regular (weekly) partial (25-30%) water changes should also be done to keep the ammonia, nitrite and nitrate at a non-toxic level. These chemicals are the result of fish waste and uneaten food decaying. They will all kill your fish in time if allowed to accumulate.
Some fish you could keep in a cold water tank are: white cloud tetras, zebra danios, gold barbs, rosy barbs, weather loaches, koi and the various species of goldfish.
The sea horse is a very delicate and difficult to maintain properly, salt water creature that needs warm water and very high water quality to survive.
2006-12-22 07:35:57
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answer #1
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answered by 8 In the corner 6
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There are very few fish available the will tolerate an unheated tank.
Contrary to what others have posted you should not keep bettas in unheated tanks. While they will survive for a short while they will not be healthy.
Most of the native american fish will do well in cold water as well as mountain river fish such as the white cloud mountain minnow.
2006-12-22 15:53:08
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answer #2
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answered by Anonymous
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Welcome to aquaculture. :) I beg you not to put any fish in that hell hole. Fish metabolisms just won't work in an unfiltered, unheated, un-cared for bowl. Instead, get a live plant (maybe a java fern, they're cheap!) to help recover nitrates and place a few bright red cherry shrimp in the bowl. They'll swim around and be very active, even if the temperature fluctuates, they'll crawl all over the plant, and they won't dirty up the water so much that you'll have to constantly monitor it. Best of luck to you!
2016-05-23 16:16:40
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answer #3
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answered by Anonymous
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Salt water tanks may be maintained at a higher temp. Fresh water tanks should be kept cool! Simple fish to keep alive include:Beta fish, gold fish, Molly's, guppies... With these types of fish you won't even need a filter.
The sea horse lives in salt water! I imagine that they live in different climates where the water temps. vary!
2006-12-22 06:29:26
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answer #4
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answered by Dee 3
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white cloud mountain minnows extremly hardy they even live with goldfish, the live in streams in china and they will also live in pond and aqurims. Sea horses are extremly fragile, you would need a heater just to keep the te,p at the same temp. I would not recoment puting them in a non heated envoroment. Koi also don't need heaters but there like goldfish.
2006-12-22 07:17:19
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answer #5
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answered by Jack Herbert 3
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Koi, shabumkins, plecos, or any fresh water species known in an intercontinental stream north of Texas, like carp, catfish, bass, rock bass, sun fish, and perch. They are actually pretty in an aquarium setting as opposed to ponds and streams (their natural habitat). And good eatin' when they die!
2006-12-22 08:13:45
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answer #6
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answered by emmie8750 4
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comet, nymph, shubunkin, bubble eye, celestial, fantail, lionhead, moor, red cap oranda, pearlscale, pom-pon, veiltail and japanese goldfish strains are all different types of goldfish, then there are the cross breeds!
In answer to your question: Koi, bitterling, japenese loach, green sunfish, three spine stickleback, pumpkinseed, orange-spotted sunfish, bluegill, spotted sunfish, chinese sailfin sucker, red shiner, minnow and rudd are all coldwater freshwater fishes.
The names are a bit weird I know!
2006-12-22 09:51:23
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answer #7
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answered by Gracie 3
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im sure theyre are plenty because i have kept a couple of fish myself that were comfortable in non heated water that werent goldfish.
2006-12-22 06:27:14
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answer #8
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answered by Anonymous
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Beta fish are great.
Sea horses are extremely care dependent salt water critters. They require a lot of care.
2006-12-22 06:27:00
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answer #9
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answered by premise 3
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Bettas. My daughter had a betta that lived until the ripe old age of 3 in a non-heated aquarium.
2006-12-22 06:26:02
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answer #10
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answered by WonderWoman 5
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