Okay, so I've tried like 5 different pond dyes before stumbling upon this magical blue liquid. Let me tell you - this stuff is POTENT!

I have a 3,000 gallon koi pond and was skeptical at first. But holy moly, just a tiny amount gave me that perfect Tiffany blue color that makes my fish pop. And it lasted through weeks of rain which is crazy.

The best part? My koi seem way more relaxed with the shade coverage. No more algae battles either (though I can't 100% credit the dye for that).

Word of warning though - it WILL stain anything it touches. My neighbor's white duck took an accidental dip and came out looking like a Smurf! At least it's non-toxic.

10/10 would recommend if you want that insta-worthy pond look without constant maintenance. This gallon will probably last me a decade at this rate!