New 10g Tank

[Stevo808]

I just got a 10G Aquarium tank yesterday and i bought about 10 Tetras,3 female guppies,2 male guppies, 5 of these orange fishes not sure of the name, and thats it. The tank came with everything so its pritty easy to setup. I was wondering when i change the water and add warm water to it will the fishes get into a shock? I dont know much about nitrite and nitrate as far as that you gotta keep changing the water to have healthy fishes but can anyone tell me if im doing everything correctly?

 

[Josiah]

In my oppinion the tank is over stocked, make sure you use dechlorinator, and I'll let somebody else explain the nitrogen cycle(I'm actually just guessing you didn't cycle).

 

[TerraDreamer]

20 inches of fish in an uncycled 10 gallon tank. We should start a betting pool on when he posts his first panicked "All my fish are dying!" post in the Tropical Fish Emergencies forum.

I'm of the opinion most lfs owners/workers are dishonest, unscrupulous trolls.

 

[dirtydogg]

I have an article you might want to read Fishless cycle. A sudden temperature change is usually bad for fish, if you want to raise the temp do it gradually.

 

[dwarfgourami]

Hi and welcome to the forum.

You will have guessed from previous posts that there is a bit of an urgent problem to do with your stocking.
To put it briefly, it takes time for a tank to build up a colony of bacteria big enough to handle the fish waste, so you cannot add a whole load of fish all at once.
Also, you would be heavily overstocked for a 10 gallon tank even if it was mature and had developed its full bacterial potential.
What you need to do now is one of two options:

either take all the fish back to the shop and do a fishless cycle (pinned topic). If the shop knew that all these fish were to go in a new 10 gallon- give them an earful. If they were not fully aware of the facts, you will have to be a bit more tactful.

or, take back all the fish except two female guppies or one of the orange fish (assuming they are platies), then buy a test kit, keep testing every day for ammonia and nitrites and do a partial water change whenever either goes over 0.5 ppm

as for your question: new water added at a water change shouldn't be warmer than the water already in the tank, so that shouldn't send them into shock. Mix it up in a bucket first to get the temperature right. And don't forget to dechlorinate.

and just one more point: from now on, never buy a fish until you know its name and have looked up its requirements either in a good book or online. Fish have very different requirements: some grow massively big and need monster tanks, some are aggressive, others need to live in groups, and they don't all eat the same things. Buying a fish is like buying a mammal- you really do need to know if you are getting a hamster or an elephant!