hi , how long have they had swollen bellies ? have they had a big feed then developed the pop bellies ? best thing to do is keep an eye on them , get some reading material and read up on them too. if they were like that when you bought them then possibly but who can know for sure.how long have you had them ? do you have a male in with them ?
helloi dont no much about tanks and fish buti have three small pepperd cat fish and two gold goramis one pearl one dats one of the bloated ones two bright blue gouramis one of them are bloated and a siler one with lots of black dots on it and one blue one with red strips they are all gouramis just dont no wat type hope my discription helps my tank is quite big none of em have any swellen or red marks on em there poo is clear and stringy p.s do u mmean human peas if so garden or prosses peasang how much