Due to the topic of the community, there might be some heated debates and discussions in the comments (the example above with the vegan cat food is a good example). That might be quite time-consuming to follow and moderate
Based on this, I think we would need probably at least 5 mods to make sure the community stays sufficiently moderated.
I'd be willing to help, but I'd like to know you're logic for such a niche community needing 5 mods? I can't imagine such a community would get more traffic than, say, !yurimemes@lemmy.blahaj.zone and I wouldn't call that community under-moderated.