:tears: i picked up this fish yesterday, and when i was putting him into his tank i noticed he had red veins in his tail, his tail is a bit tatty and his body has a redness to it, bought off trademe and when i picked him up, he was in a bucket, so looking down on him i didn't notice grrr! :an!gry my fault for not inspecting him properly, i know the cause can be septicemia so how can i treat this? will he affect the other fish? i will do plenty of water changes to make sure the water is super clean for him. fins don't seem to be clamped but he is a bit dopey