TyranoSphere

This products looks amazing when it glows.However, what is not made clear to you before purchase is that every 10 days the sphere has to be fed with "Dino Nutrients" in order for the organisms (plankton) to continue to survive and thus glow at night when agitated.The item included 3 bottles of Dino Nutrients which last 40 days.After that you will have to continue to purchase Dino Nutrients for the life of the product.The cost of the Dino Nutrients is approximately £234 a year at current prices plus shipping costs. With discount code "oceanlife" you can get 50% off the cost of the Dino Nutrients but that is still approximately £117 a year plus shipping costs.I just wish this was made clear in the item description before purchase! Then I could have opted for a smaller one such as the Dino Pet or smaller Sphere which require less nutrients per 10 days.