It's been months since Happy Aquarium used the demo tank to showcase new items. But don't let the above image (which was ganked from the official forums) fool you -- Harold's Tank remains inhabited by grotesquely cute catfish and ship-hugging kraken. Still, the game was feeling groovy and a tank display, however static, was the best way to show it.
Look, it's them hippie fish! What you're seeing above is the new premium Limited Edition Pink Flower Puffer, John Denon, and Green Peace Puffer fish. All three are animated, but the puffers are the most dramatic, since they do more than swim around. When the puffers expand, you'll see a flower icon and a peace symbol on their respective bellies. It's literally pop art! Each puffer costs 20 Pearls or 17 Facebook Credits ($1.70 USD), and different genders are available. Finally, the John Denon fish is going for a pricey 62 Pearls or 52 FB Credits ($5.20 USD). But even at that price, it's out be fashionable, not political. So don't expect it to serenade players with "Imagine".
For ambiance, there's now a Tie Dye wallpaper (for 36 Pearls or 30 FB Credits) and Psychedelic gravel (for 69 Pearls or 58 FB Credits). And decor-wise, there's a Hippie Bug (for 14 pearls or 12 FB Credits) and Hippie Van (250 Coins). Aside from looking very much like the Scooby DooMystery Machine, Hippie Van is also the only non-premium item in this new theme set.