Instruct: Classify the given review into positive or negative sentiment.
Query: Pretty, but not worth the trouble

I bought a BiUbe in April and since then I had 4 sea anemones, 2 cleaner shrimp, 1 fire shrimp, 2 star fish, 2 damsel fish, and many corals die! For starters, the light unit that comes with this tank is not strong enough for the animals. I bought both the IntelliLight and have the original light and neither work well enough to keep the animals alive. Next, it doesn't come with the other helpful accessories such as a powerhead. The cleaning for the unit is a bit of a hassle because you can't arrange the rocks anywhere near the center because then you have to move them to change the filter. I'm going to sell my unit and look towards a NanoCube. Yes, its pretty, but that's about it.