The fishes look very sad without any plant in their aquarium :/ Aquarium shops are always so rude to fishes..

anyways: Next time you use the third party thumbnail field - make sure to use an actual *.jpg or *.png etc link. The link you tried is the website not the image itself. (right click on the iomage -> copy image url will solve this in future) ;) Your thumbnail for example is that:

instead of:
https://ibb.co/510qnR7

Peace!