I bought this Volcano for my 20 gallon aquarium and I can tell you that so far it's been bittersweet. The instructions that came with the product were not that good. Also, you'll need to buy an air pump to attach it in order for your volcano to actually produce sea rock bubbles. So it's just a case, but once installed the bubbles won't disappoint. My only complaint is that adding light to a volcano can be difficult. There's no proper place to put it and the instructions aren't clear on where inside the volcano to add it, so you'll need to set it up as best you can. The bubbles also rise to the LED lights on the pond, so you may need to adjust the water level like I did. But then again it keeps all the snails on the floor and on the windows which is nice! All in all, although it looks great at night and I still have it in my tank, it's a nice addition to my tank! 8/10 happy with the product but 5/10 with the customization.
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