Please help ID these plants
Hi everyone. Does anybody know what type of cactus and plants these are? I got them from my brother who had no idea what they were or how to care for them. He said his ex just repotted them and that's all he knew. The green cactus I believe is euphoria trigona (saw some online that looked alike when I tried to look them up) and doesn't look so well. There are 5 plants in all... Green cactus, blue cactus, huge bamboo looking thing, red thing, and the plant on the shelf behind the cactus pot . I can't be sure on how to properly care for them until I can figure out what they all are. Any help identifying them or tips on care is greatly appreciated. Thank you so much!!