what fish are suitable for a 15l coldwater tank?

Answer 1

15 L is awful small but here are a number of suggestions:

The most common coldwater fish is the goldfish, followed closely by it's larger counterpart, the Koi. However there are many other interesting fish that do not require a heated tank. Many coldwater fish are large enough that are only suitable for ponds. However, being your tank is so small I believe these should be left out. NEXT

Barbs - Several readily available species of Barbs are tolerant of temperatures into the mid sixties, or even lower. All are easy to care for, and are suitable for a community aquarium. They include: the Gold Barb (Barbus schuberti), the Green Barb (Barbus semifasciolatus), the Rosy Barb (Barbus conchonius), and the Two Spot Barb (Barbus ticto).

Bloodfin Tetra - Both the standard Bloodfin (Aphyocharax anisitsi), and the False Bloodfin (Aphyocharax dentatus) tolerate temperatures as low as the mid sixties.
Bloodfins are offered in many pet shops, are easy to care for, and are quite hardy. They are active top dwellers and are best kept in schools.

Buenos Aires Tetra (Hemigrammus caudovittatus) - Easily found for sale, they will tolerate temperatures into the mid sixties. Standard varieties, as well as albino variants can be found. Like the Bloodfins, they are undemanding and easy to care for. They are suitable for a community tank, but will eat live plants voraciously.

Croaking Tetra (Coelurichthys microlepis) - Not often found for sale, they are an attractive fish that is worth shopping around for. Like other coldwater tetras, they are easy to care for and are suitable for community tanks.

Guppy (Poecilia reticulata) - As readily available as any fish, there are many attractive variations of this popular fish.

Hillstream Loaches - Although they are not often seen in pet shops, some species can be found for sale from time to time. Not all of them prefer cool temperatures, but most will tolerate temps that fall into the mid to upper sixties.

Native Fish - A variety of North American native fish are now being sold in the aquarium trade. Virtually all of them tolerate cool water. Availability varies from state to state, as do laws regarding which species may be legally kept in home aquariums. Keep in mind that some will become too large to keep in a standard aquarium.

Pearl Danio (Brachydanio albolineatus) - Like the zebra danio, this fish is very hardy and easy to care for. It will tolerate temperatures into the mid 60's without difficulty, and is easy to find. They are larger than zebras, but need not be kept in schools.

Weather Loach (Misgurnus angullicaudatus) - Readily available, this loach is one of the easiest to care for. Couple that with the fact that it will tolerate temperatures into the fifties, and it makes an excellent candidate for a coldwater tank.

Wimple (Myxocyprinus asiaticus) - Also known as the Freshwater Batfish. Not commonly found, it is an unusual fish that is worth tracking down if you like to have something unique. It will tolerate temps into the mid sixties.

White Cloud Mountain Minnow (Tanichtys albonubes) - One of the easiest fish to care for, a new gold colored variant has become very popular. They do best in cooler temperatures, although very low temps will lessen their attractive coloration.

Zebra Danio (Brachydanio rerio) - Outside of goldfish and the guppy, the zebra is the most readily available of all coldwater fish. They tolerate temps that fall into the mid sixties, and are very easy to care for. Long finned species are available, as well as a popular leopard spotted variety.

There are many other coldwater species I could cover, but the above list should give you enough options to get started. Good luck with your coldwater aquarium.

Answer 2

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Answer 3

Such a small tank, sub-tropical White Cloud Mountain Minnows. Get a tiny school of 4. They can handle 16-24° F no problem. That's 60-75 in the USA.

Answer 4

Well, 15 litres is only 3.75 gallons, which isn't big enough for much. Most small fish are tetras or danions or rasboras, and those are fast, active schoolers that need a lot of room. Your options would be:

- 2 or 3 cherry barbs, or endler's livebearers, or white cloud minnows
- One male or female betta
- A colony of red cherry shrimp or ghost shrimp
- 2 african dwarf frogs

Answer 5

There is no coldwater fish that is suitable for a 15 L tank. The only fish you could put in a tank this small would be a betta and a betta would need a heater, and of course a thermometer so you can chart the temperature. And of course, all fish need a filter.

Answer 6

Well, 15 litres is only 3.75 gallons, which isn't big enough for much. Most small fish are tetras or danions or rasboras, and those are fast, active schoolers that need a lot of room. Your options would be:

- 2 or 3 cherry barbs, or endler's livebearers, or white cloud minnows
- One male or female betta
- A colony of red cherry shrimp or ghost shrimp
- 2 african dwarf frogs

Answer 7

cold water fish in a small tank would be either a tiny gold fish, betta, a nice pair of fancy guppies... tetras, are native to warm waters, so are barbs. They would probably get ick if you tried to keep them in a cold water tank. Try to do regular water changes, and dont over feed. Remember to use a chlorine elimiator like start right each time you add water. Have fun

Answer 8

you could do one male or female betta with 2 ghost shrimp and maybe one oto catfish when you get algae. the 1in per gall is BS. i have the one male betta, 2 shrimp, and one oto in a 5 gallon with no heater, temp in the high 60s my betta will eat from my hands he loves the room. but you will not need a heater for a betta. no goldfish.

Answer 9

3 1.25" goldfish, a Betta and a ghost shrimp or snail, or 1 3.75" goldfish