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I bought a 2.5 gallon tank and it has a filter but does it need a heater? I just realized that it didn't come with a heater. Thanks.

2007-10-15 13:14:19 · 10 answers · asked by Starlight 2 in Pets Fish

I haven't bought any fish yet but set up the tank this afternoon. I just wanted a smaller tank for my son to look at the fish.

2007-10-15 14:03:40 · update #1

Room temperature is usually 74-75 (with air conditioning) but now that it is getting colder, when we turn the heater on, it will most likely be around the same. In the mornings it can get to 71 but that is b/c we haven't put the heater on yet since the temperature has been in the 70s, even 80s, during the day.

2007-10-15 14:05:49 · update #2

boncar...yes, I got a small tank just so I can let my son watch fish get tortured. F you. I had no clue. I bought a tank that was at the store, asked the saleslady if it was fine, and she said yes. THAT IS WHY I AM ASKING ON HERE, BEFORE I BOUGHT THE FISH. If I were that cruel, I wouldn't give a crap and would just get any fish. I NEVER INDICATED ON HERE WHAT KIND OF FISH I WAS GETTING. I DON'T EVEN KNOW WHAT A BETA IS. Jeez...people love to make assumptions and be rude.

2007-10-16 01:35:34 · update #3

why the f do these stores even sell a tank that small if you can't keep fish in there at all then? some of you are just plain rude.

2007-10-16 01:36:45 · update #4

10 answers

It depends what kind of fish are in the tank. Some fish need warm water while other species thrive in cold water. Ask at the store where you bought the fish.

2007-10-15 13:42:30 · answer #1 · answered by Anonymous · 0 1

While it can be difficult to maintain the water temperature in a tank, it’s absolutely necessary that you have one. There are two reasons for this. First of all, if your Betta gets too stressed out over a period of time, his immune system will become compromised, and he’ll begin to lose his ability to fight off infection and disease.

The second reason is that your Betta is used to living in water that is between 75 and 80 degrees Fahrenheit – and he will become listless and unresponsive if the water is too far above or too far below that temperature. This becomes even more important in a large tank.

It’s also very important that you maintain a fairly consistent temperature in your Betta fish’s tank. Your fish won’t handle extreme temperature changes either. By the way, it doesn’t take much of a water temperature change – just the matter of a couple of degrees Fahrenheit – for your Betta to be affected – so this is something you really need to pay attention to.

The unit of measurement for aquarium heaters is in watts. When trying to decide on which heater will be best for you, a good basic guideline is 5 watts per gallon of water. Make sure that the heater fits your tank and, if it’s an internal one, can be properly inserted.

If you’re not sure and you didn’t buy the tank and heater together, take the tank with you to the store, and ask the manager to help you get the right one.

2007-10-15 13:39:26 · answer #2 · answered by ll 3 · 0 0

No, but for a tank that tiny, and I mean TINY (why would you get one so small when 10 gallons are the same price) the only fish you can get in there is a betta, and yes, they do need a heater. But even a betta is better of with a 5 gallon.
I think that's a little sick that you got a small tank to allow your son to watch as a fish gets tortured. You are teaching your son a terrible thing. Get at least a 5 gallon, and just a betta, and then you can truly teach your son that animals should be cared for. Goldfish will die fast in that tank, they grow fast and are very messy, so don't get one of those.
From the temps you list, you definitely need a heater for your betta.

2007-10-15 18:43:13 · answer #3 · answered by boncarles 5 · 0 1

It varys. What is your room temp? What sort of fish are you getting? What is your temp at night? All of these things matter greatly. If your room temp is 71 or below, i recommend you get a heater. Temperature that isnt immitated in the wild can lead to diseases. Wouldnt want that. Fish like bettas need hot temps such as 79-80F degrees so a heater is a must.

Btw: Im assuming your getting tropical fish because you cant house a goldfish is a small environment that you are providing.

2007-10-15 13:57:52 · answer #4 · answered by Anonymous · 0 0

You don't need a heater if you put up to 3 white mountain minnows in there

BUT stay AWAY from a goldfish, it's not a proper home for them, and is cruel

If you want to have a betta, you will need a heater, because it's unhealthy on fish to have fluctating temperature
For a betta and other fish it should be around 78-82 degrees constantly




Hope that helps
Good luck


EB

2007-10-15 21:32:47 · answer #5 · answered by Kribensis lover 7 · 0 0

Yes all fish require constant temperature. Control it with a heater.
The only suitable fish for a 2.5 gallon is one male betta.

2007-10-15 14:52:08 · answer #6 · answered by Sunday P 5 · 1 0

If you're getting tropical fish then yes, you will need a heater. Most of the fish sold at stores are tropical (bettas, guppies, african dwarf frogs, mollies, tetras etc...). Research the kind of fish you want to buy BEFORE you buy it so you will know if it's tropical, what to keep the temperature at, what it eats....

2007-10-15 14:52:27 · answer #7 · answered by Laura 4 · 0 0

It depends on the type of fish your interested in. Goldfish usually are coldwater fish, meaning they don't require a heater. Tropical fish, however, do need one.

2007-10-15 14:02:05 · answer #8 · answered by Anonymous · 0 0

Well, yes, all fish tank needs heaters. Unless you have goldfish but then sometime you would still need them because if you have an air-conditioning system, they could freeze your fish.

2007-10-15 13:43:56 · answer #9 · answered by Chris 5 · 0 1

What kind of fish do you have?Goldfish don't need a heater.Any tropical fish do,however.

2007-10-15 13:47:34 · answer #10 · answered by Anonymous · 0 0

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