Airmax Pond Dye Plus, Nature's Blue Colorant & Natural Beneficial Bacteria, Large Pond & Lake Water Clarifier & Color Treatment, Shade Plants & Algae from Sunlight, Fish & Livestock Safe, 1 Gallon

I have a 1500 gallon gold fish pond and a 7000 Koi pond that were looking a little sad and brown here in winter. And since the water clarity was good I was concerned about the views that might be open to heron, raccoons, possums. Yes I live in the city but have a nice woody acre. So I decided to try the Airmax Black Dye because the blue dye doesn't look good on waterfalls. Well the black is very pretty black with very little product used, but the water coming over the waterfalls looked neutral. That was good. The water in the test tubes for ammonia, nitrites, pH etc was clear so that tests were accurate. That is good. I hope that the lack of penetrating sunlight may slow down string algae as it warms up. But the darkness does not seem to affect water temp. Thats good. And the ponds looked really cool, deep black with the reflection the ads talked about. Until I decided to put some Natures Blue in one to try to get the Twightlight Blue that Airmax also makes but that I didn't buy. Unfortunately it did what ll blue dies did: make it a very pretty but unnatural blue across the waterfall and at the agitation at the bottom of the falls. When I received the products there was a slip enclosed that asked that if I could't give them 5 stars please call or email. I had 2 issues that were going to take my rating to 4 stars so I did as asked and emailed them my feedback. Much to my surprise I didn't get a defensive answer or an excuse as to why they must do what they must do. I got a real back and forth conversation that specifically addressed the feedback I was going to give about dosing for smaller ponds. As a result of the time and interest they took with someone who only spent about 50.00 with them, they have created a repeat customer. So my feedback is that the product is good but use increments of a half or one ounce at a time. If you have a waterfall the Natures Blue will make it look very blue...very bright blue, and I think unnatural. I am going to stick with Black or try Twilight Blue. Thanks Steve! You were a Blessing.

We love this dye, and the fish love it too. When the dye is in, the fish can be seen clearly swimming high on sunny days, as the water is shaded nicely for them. It also keeps down the algae. We were paying $300 a month for a lake maintenance company to manage our spring fed 1 acre pond. Then we decided to diy it. This color is much prettier than the one the maintenance company used. We now also get our algeacide from Amazon...treat it with that every 2 weeks....just like the company did, then apply this once a month. A full bottle for our 1 acre. This system has saved us so much money! The algeacide we use is the $35 one. Great diy combo for crystal clear, pristine water. It turns out pond into a tropical paradise! It actually lasts longer than a month! As it starts to fade a bit, I retreat. I prefer mine very colored. You can go months before adding. When you get lots of rain, you will need it a bit sooner. It's safe for our fully stocked pond, and we even have foot long goldfish, and it's safe for them all.

A little goes a long way. Be sure to follow directions. Works well if used properly. I stress proper usage because I over did it my first time (major over did it) and had a fish kill. ☹️ It definitely helps with algae growth.

We've only had a pond for a year now and learned from the previous owner about this product. It wasn't until Jun 2025 that I put in our first application. I added one more 4 mo later; before the winter. So it's a little early to judge if it's doing everything it's supposed to, but it certainly did make the pond blue! Before and after pics attached.

Works great every time!

We have a lot of pond weeds growing in our 1/4 acre earth pond every summer, making it look very unappealing (except to the dogs). Previously we have used a different color dye from the Pond Guy, but it made the water resemble the Caribbean, and we live in North Idaho. This time we chose the Twilight Blue color, applying it towards the end of March to get a head start on the weed growth. The color is really nice, a darker blue that looks pretty natural for our area. We initially added one cup of dye, but the color wasn't quite as dark as we wanted so added another cup, which did the trick. When the weather warms up, we will try Muckaway to help clear the bottom of the pond, which is now about twenty years old. Over ten years ago we added a baggie full of goldfish to the water (from a pet store, to "help" feed the turtles); there continue to be several large schools of goldfish of different sizes and colors that over-winter, so they are alive and well, and attracting herons, Kingfishers, ospreys and mergansers. Hopefully the darker color of the water will make it more difficult for them to get picked off! We plan to use the dye every 4-6 weeks as recommended; it is very cost-effective for us since our pond is small with a constant influx of water from an underground stream, and doesn't need aeration.

Use gloves when using this item and DO NOT THROW OVER HEAD as the power will stain 🫟 your skin and clothing . And will last on your skin a couple of days. Lol It is favorite product to use in your lake or pond to keep it looking blue and help settle down the algae.

Update 9/9; Unfortunately after 3 days it has seemed to of worn off and my pond turned green again. I’ve added another 2 fl oz to see if it hold up. So, I got this for my pond, and let me just say, this stuff does *not* mess around. My pond’s about 5,000 gallons +/- a few gallons here and there, baking in the unforgiving Southern California sun, and I figured, "Hey, I’ll eyeball the amount." Well, let’s just say my eyeballing skills are a little too ambitious. Less than 2 fl oz later, my pond is now a **bottomless abyss** of darkness. Pitch black. Like, I’m pretty sure if I toss a coin in, it’ll disappear into another dimension. It's not so much a pond anymore as it is a scene from a horror movie. I half-expect a mysterious fog to roll in and a voice to whisper, "Join usss..." In fairness, I “should” have started with 1 fl oz. But did I? Nope. So, here we are with a pond that could double as Darth Vader’s swimming pool. On the bright side (or lack thereof), it’s doing its job fantastically! No UV rays getting through this black void, that’s for sure. The water looks great, if you’re into the whole "infinite darkness" vibe. If you’re looking for a “subtle” tint, though, maybe start with less than half an ounce unless you’re trying to summon a kraken. **Overall, 10/10 would recommend**, but learn from my mistake and measure carefully unless you’re ready to embrace the darkness!