Since he's a plakat, I doubt they'll get much longer. Plakats are zippier than other bettas because of the lack of heavy finnage, so he might just be playing around. As long as he doesn't look sick or lethargic and lies on the bottom, its fine. Must be going up for a breather :D
Girl bettas are rounder and have eggspots, males don't have eggspots, except for some young ones.. I remember ther being a thread somewhere about this... I'll find it..
Ok, sorry I couldn't find the thread X( but there are certain things you look out for; it would be easier with pics but hopefully someone else can find them lol!
The ventrals (the dangly fins in front) are longer in males
Males have beards
Males (except young ones) do not have egg spots, which are found between the ventral and anal fins
Males are more streamlined
These are all I could think of. Males make bubblenests but there have been cases of females making them as well :). Hope it helps!
If you're contemplating getting a heater, just get a thermometer first and track it for awhile, if the temps fluctuate too much or its too cool, you should get a heater, I live in a tropical area but I still need to have a heater in most tanks :/
You're welcome btw! :D
Thanks so much i will know to look for that next time! I have noticed that my betta also likes to swim as fast as possible to the top of the tank and then will do the same going back down. Is this normal? Is he just playing around?
Hi Rmorgan! Welcome to the forum. Does he seem to swim normally or spastically? If you see any jerkiness, change 80% of your water immmediately (use dechlorinator!)