Blue Thumb has everything you need to add a beautiful water feature to your home! Water Features We have everything you need to create a beautiful waterfall, cascade or fountain. Complete Pond Kits Blue Thumb offers complete kits to create a pond or pondless waterfall. Fish Food High quality fish food and fish care keep your Koi and other pond fish healthy and looking their best. Water Treatments A variety of water treatments to keep your water crystal clear and healthy for all aquatic life. About Blue Thumb Whether you’re an Industry Pro, Weekend DIY Warrior, Passionate Hobbyist, or just someone who loves water, we have everything you need to add a beautiful water feature to your home.