I get 2 question almost Fish?

First question: I have 2 goldfish and one of them (a white one) has a big stomach. The white one, I already had but the other one I just got so I don't know whether she is pregnant with the male she was near before or if I gave her too much food?
And the trial one I just got, right now, when I stand up or move, he starts swimming around tremendously fast like crazy! Is he nervous? If so, how can I clear him more relaxed?

Second question: I just got a betta (in a separate bowl which is kinda small) and I don't know much approximately them. He is so, like, calm and just swims here and in that and sometimes just goes to the bottom and rests. Is he sick? Do they normally do that? And also, I hear that if you stick your finger in their bowl the betta will bite or eat it?
(He is a veiltail betta)
Answers:    First question's answer: About your Goldfish, the females adjectives have bigger bellies! I have two, one male, and one feminine. One of them has a bigger belly, and this does not mean she is pregnant, precisely, though they DO carry excess, unfertilized eggs. She will lay the eggs when you see your male bumping her around the tank, normally he zeroes in on her belly and anus, until finally, she sprays the eggs everywhere. Secondly, just about your male, I do not think he is nervous, I surmise he is just excited to see you! Goldfish have very avid personality - this usually happens when they recognize their owner, and they catch excited.

Second question's answer: No, Betta's do not bite. First of all, you said you had him in a bowl? This could be a fruitless thing - it might be too small for him. Secondly, you said you also just got him, so that depends really, he's probably a short time ago getting used to your tank. You said he goes to the bottom and rests. No, he is not sick, or he might not be. You should have a kiln to go with your Betta, sine they are Tropical fish. Usually, signs of being cold, are fish going down to the bottom and resting. But whether you do have a heater, you've cycled the tank, added surrounded by a real plant or two - this just means that he is getting used to the reservoir!

Good luck with your fish!
I agree with Sarah about your betta you will involve a decent tank light , electric fire and filter after all this is a tropical fish.
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