Tropical Shade Liquid creates a natural Deep Blue look. Concentrated and long lasting, one gallon will cover an one pond to a depth of four feet (1,300,000 gallons of water). Environmentally safe, non-toxic and bio-degradable NSF Certified to the ANSI/NSF standard 60. When used in proper dilutions, it is harmless to wildlife.
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No harm to your fish
May 10, 2016 | By Chris
We have a 70' x 50' pond with a depth of 3'-7' with LOTS of goldfish. 32 oz. of Tropical Shade Lake & Pond Dye gives the water a gorgeous sky blue color. Purchasing a gallon liquid is economical and it will last a long time. We dye the water in May & August. Great product...unfortunately the shipping is pretty steep but overall $62 for product and shipping is worth it.