WOT Fish biOrb I put in a bay that is 15 liters?

I am thinking of buying this fish tank fish WOT I put in and how many know its small, but I can only pay this WOT I need to buy more? http://www.petsathome.com/shop/baby-biorb-with-light-15ltr-coldwater-aquarium-kit-16383

Do not buy fish tank. I really do not recommend any fish for a tank of this size and shape of small bowl. It is not even suitable for a Betta, since only has a very small area. It's a glorified overpriced Goldfish Bowl! Definitely not worth £ 55! For £ 55 you can pick up a larger tank section regular rectangular which is much more worthwhile. Here is a 54L for just ten euros more: http://www.rocketaquatics.co.uk/juwel-korall-tropical-aquarium-p-3695.html Far more suited to the fish!

My Marine Biorb