My son decided he wanted a betta. I’ be never had fish before I have no idea what these are like! We went to the shop and bought a 25l tank for it, the shop assistant said we should run the tank for 10 days prior to getting fish and gave us some water conditioner and bio-boost. I also got some sand. Is it right that you need to wait for 10 days before getting a betta so that the tank can have the right conditions? Do I need to get plans as well? The tank we chose doesn’t have a lid and I’ve just read that Bettas like to jump? Basically, what do we need to keep fish safe and happy please?