Can these bettas live together?
my mom is a plumber and she got called out to a pet store who had bettas that they bred themselves. she knew my tank was almost empty so she got me 2. they are smaller than the average female at petco. they were in a jar for a day because i need to get/make a divider so my goldfish wont nip their fins as they usually do. they were only in a jar for 2 days and it was big but had no hiding places in it. they started to nip each other so i separated them just to be safe that they dont kill each other. my mom told me the pet store said that because they were always together they would have no problems living together is that true and were they mating or fighting thank you very much and your answers are apriceated
P.S. i have a 15 gallon tank and i was going to split it 50-50 with the goldfish i have had bettas before so i know spending some time in his old jar wont hurt them i do a 50% water change daily and my old betta lived for 8 years 7 of them in my 15 gal tank 1 in my 10 and about a month to quarantine him from my other fish to limit disease the two also had a bubble nest in the shard jar not big but still there