Haven't seen anyone report this bug yet but in the latest 1.18.2 build of Alex's Mobs, the spiked turtle helm doesn't give the extra 15 seconds of water breathing like it suppose too. For comparison I screenshotted me wearing both the spiked turtle helm and the vanilla turtle helm and as you can see they give the same amount of water breathing.


Hope to see this fix because I don't want to risk myself getting chomped by angry tortoises just to get a slightly upgraded turtle helm with extra defense.