21.10.2019 Now available: sera anniversary calendar 2020 With the most beautiful pictures from the previous decades In the next year, the sera company will celebrate their 50 year anniversary. The calendar for 2020 is therefore designed in a very special way: it contains the most beautiful 12 calendar pictures from the previous decades. sera included their Facebook aficionados in the selection also this time: they could choose the twelve images they liked best out of 28 calendar images from the 1980s, 1990s and 2000s. Of course there was also something to be won in the voting event: three sera Biotop Nano LED Cubes 16 including sera O-Nip Nature, sera aquatan and sera Nitrite-minus were raffled among all participants. The first pages of the calendar take a look at the 50 year company history, but also look forward into the future. A timeline shows which milestones the company achieved on its way to becoming one of the leading suppliers of food, care and technical products for aquarium, terrarium and pond care. Then the twelve most beautiful calendar pictures from the previous decades are following, some of which one or the other long-term sera aficionado will remember. The sera anniversary calendar 2020 is available for free in the specialized pet trade from now on.