Can fish tell if the weather changes?

[Midnightwolf6]

My mom always told me that animals can tell when the weather is changing, so I'm assuming fish can too.
My fish has been flaring up at everything and everyone for no reason at all allll day long. Is flaring constantly bad for them?
Would that be because the weather is changing? We have a big storm rolling in and it never really rains here.

I was also wondering how long it takes for fish to regain their color? I got my fish over a month ago from wal mart and he was looking a little pale. I was hoping the pale head would begin to turn blue like the rest of him but he hasn't yet. Anything I can do to help him or is he jus stuck looking pale?

[Midnightwolf6]

Here are some pictures of him.

[Splinter492]

he looks like a marble and lots of bettas tend to have weird color changes either because of stress food or other reasons, just give it time and he should be fine.

[MrVampire181]

Yes they can. My fish suddenly go crazy and want to spawn whenever it rains or even if there is a full moon.

[Midnightwolf6]

okay well at least I know he's not going insane now lol he was kinda freaking me out. He would flare up and swim in circles like crazy

[Midnightwolf6]

I have another question.
I have been reading other posts and have read a few about cts. Someone had mentioned that ct's need heaters. Otherwise the tips of their tails curl. I have noticed mine has a few curls.
Are they absolutely needed? and are they expensive?

[sumsum]

I don't know if it's necesary but if the water is under 78 degrees in the water it's recomended but in the Mojave desert or the Yuma Desert(I think Yuma is Mojave Desert but I also thought Palm Springs was) it shouldn't be a problem. You can buy relitivly cheap filters for tanks under 20 at Petsmart.

[dramaqueen]

I paid about $18 for my heater. Bettas need a steady temp of 76-82 degrees.

[Midnightwolf6]

hm I don't have a thermometer. Except like regular ones you use for when your sick lol are those possible to use in a tank?

anndd my house tends to get kinda cold, but I leave his light on all the time. So that should warm it up some right?

[dr2b]

You need to buy a tank thermometer - they are only a couple dollars. You should get a heater also. I think I paid like $13 for my 50 watt...and my 25 watt came with my other tank. I use Hydor heaters.

You also need to give your fish a day and night cycle. The light being on all the time will stress your fish out.