my fish tank size is 85g after aro will grow bigger ill move it to 160g. but currently my arowana is not swimming properly its turning around and his shaking its head. water conditions must be great. im changing 50% of water weekly. without delay. his tank mates are golden severum red spotted severum small frontosa few tropheus and princess burundi. they usually do not touch or disturb him his by his sefl and as u can see in video he has no scars nor nothing. im usually feeding him with shrimps. he loves them.
somebody tell me what to do i. i laready changed my water and add a easybalance (water stabilizer)