I’m having exactly the same issue trying to login - I’m guessing that as it’s hosted on OP’s own instance, our instances are not yet federated with his. Not really sure how to remedy that.
Edit: Managed to subscribe with the usual workaround - searched the community list for aquariums, not there. Searched again with !aquariums@lemux.minnix.dev, still not there. Waited a minute, searched again for ‘aquariums’ and it was there and let me subscribe.
It feels like home! I didn’t think it would, but I’ve settled in. I like that it’s a smaller community as I feel my comments count for more somehow. I also like that we’re all (or at least a large proportion of us) just a little bit clueless about what’s going on or how stuff works round here - we’re muddling along together as best we can and it’s lovely.
It feels a lot like Reddit did back in the early days before it got popular, in fact. And I think the existence of multiple instances as opposed to one site has the potential to keep it that way - if your instance gets too big or too busy for your taste, migrate somewhere quieter or even create your own.