You can publish to it by going to the relay view in Jumble. Then, on the note composer, click to unmark optimal relays and click on aquatic chicken. Notes written that way will stay exclusive to wss://aquaticchickentheory.nostr1.com . Or... you can leave 'optimal relays' marked, if you want those notes to also go to your followers' feeds. Alternatively, you can add it as a write relay. It will still reject notes that don't have one of the supported hashtags. Doing it that way will land your notes in your followers' home feeds as on Aquatic Chicken all the time. I'll have to get you a list of all the allowed hashtags when I get home today.