Hi, I’ve just bought myself 3 goldfish, I’m feeding them regularly and they definitely have enough room and everything but one of them, Eddy, keeps hanging out at the bottom of the tank in a specific corner. I’ve read that they can get constipated hence “sinking” so I gave him some little cut up bits of a pea, but now he’s had a poo he won’t eat. He’ll eat the food and then spit it straight back out again. He’s not at the bottom of the tank constantly but I catch him a few times a day, fully still just on the bottom, but then if he sees me or something gets his attention he’ll start swimming like he’s ok? I need some help pretty please if anyone could.