Hi my family just bought a Betta (his name is Buzz Lightyear) and we got him a 3 gallon tank with a filter it has a light some plants and a rock for him to hide in I was unaware of them needing a heater. I have got one but my tank is already set up and Buzz is already in it what do I have to do to now install the heater we want to make sure he is Very happy in his new home please if someone can help us I would really appreciate it
The heater is preset also he is flaring his fins alot is this normal? I also didn't get an expensive tank and it came with a gravel filter I am worried that the current might be to strong for him how do I know
Most boys flare up a fair bit. both my males flare up every time i go near the tanks lol they are flirty. if it seems to be pushing him around a lot then its too strong. some filters are adjustable and you can change the flow.