griss’ Battle with Cyano - all the Things I’ve Tried

Interesting. IMO a bit long winded and I tend to get lost in the weeds😉. Would you mind summarizing how you use the calcium powder for me? I have some MB7 I can add to the mix.

Was offline yesterday buying a new car...ugh!

Anyway, here is what I keep handy to reference. NOTE: this is quoted directly from the linked article, so I get zero credit for this.

For a number of years I had purchased branded products of Coral Snow to help achieve water clarity. That is, until I asked around and found that you can simply make you own Coral Snow solution, saving you hundreds of dollars.
What is Coral Snow?

At its simplest, Coral Snow is a Flocculant.

Flocculant’s work by binding small particles together into a larger mass that can be easily removed via filter socks or a proteins skimmer. The Coral Snow can also help to removal yellowing compounds such as phenols while at the same time helping neutralizes some undesirable chemicals in the system.

Personally, I use this powder Calcium Powder and one jar should last you years. Creating the solution couldn't be any simpler.

  • Select a clean container, one that is resealable and able to be shaken. I use an old creatine bottle. (Yes, I am on the GAIN TRAIN)
  • For 500ML of solution, add 10 level tablespoons of powder to roughly 425-450ML of RO/DI water.
  • Shake the bottle up, and let it sit for two hours. After which, it will be ready to use.
  • Now, I don’t believe that you can overdose with this product, but a good recommended dose is 5ml per 50gl of aquarium volume.
  • Be sure to shake up the bottle prior to each use as the powder can settle.
The best time to add the solution to you aquarium is after conducting maintenance such as blowing off the rocks, cleaning the glass, siphoning the sand or conducting a water change. Ideally, you should be doing all of the aforementioned maintenance items during a water change, but that discussion is for another time.

Now, on to my personal favorite use of the product: preventing and getting rid of Cyano!

Cyano Solution

Cyano, in all its forms, has been the bane of many a reefers existence. Nothing can upset or ruin the appearance of an aquarium display like that nasty, slimy cyano! The algae is present in all systems, and dates back to the dawn of planet but you can keep it from taking over your aquarium and causing you heartache.

Ideally, you want to be taking preventative measures to ensure that cyano does not gain any real estate in your reef. Prevention is always easier than treatment, but if you can always treat it too.

To amplify the Coral Snow, you will need a bacterial solution. Most will do, but I like Microbacter7 by Brightwell Aquatics. What we are doing here is mixing the bacteria with the Coral Snow, allowing it to bond and adhere to the surface of sand and rock. Basically, we’re trying to eliminate land for the cyano to stake its claim. While most of the Coral Snow will be removed via filtration, there will be a bit that coats you aquariums surfaces, in this case with bacteria that will out compete algae.

The Mix

Take your measured solution of Coral Snow and add it to a small container.

  • A plastic or glass cup will suffice.
  • Next, add 10 drops of Microbacter7 per 5ML of Coral Snow.
  • Allow 5 minutes for the solution to sit and then dose into your aquarium.
Note that Coral Snow will cloud your aquarium for at least two hours. Filter socks and Protein Skimmer(s) should be left on.

Final Thoughts

Hopefully, you find this Coral Snow solution to be advantageous. I have used it for years with great results. My aquariums are devoid of cyano and nuisance algae. The fish look like their floating in mid air and the true colors of the corals are allowed to shine through.

I dose once a week but there is no issue dosing it daily if you are dealing with a particularly bad breakout of cyano. For best results, siphon out as much cyano as possible before dosing Coral Snow.
 
The test begins. FTS just cleaned the glass so should be some bits in the water.
IMG_20230211_191256073.jpg


I mixed it as a one time batch. Pill bottles are the best. 10ml rodi, 2.5g calcium carbonate and 1ml MB7. I followed his shaking and sitting times.
IMG_20230211_191312581.jpg


FTS after dosing. The corals don't seem to notice it all.
IMG_20230211_191610323.jpg


And dang I forgot to take a picture of the cyano. Too cloudy to do it now. Will follow up with whatever happens.
 
The test begins. FTS just cleaned the glass so should be some bits in the water.
View attachment 32379508

I mixed it as a one time batch. Pill bottles are the best. 10ml rodi, 2.5g calcium carbonate and 1ml MB7. I followed his shaking and sitting times.
View attachment 32379509

FTS after dosing. The corals don't seem to notice it all.
View attachment 32379510

And dang I forgot to take a picture of the cyano. Too cloudy to do it now. Will follow up with whatever happens.
Looks really great actually. Is that your 3D flow generator on the powerhead?
 
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Looks really great actually. I’d that your 3D flow generator on the powerhead?
Thanks. Ya that's one of my iterations. I did a more flared nozzle and bigger spirals. I think my previous version was actually better. These were my own versions that I nevr posted any pics of.
Also, @kharmaguru I like that you’re posting that in this thread. I’ll order some calcium carbonate and we can document this together.👍
Of course! It can't be all the things you've tried unless you try it. :LOL:
 
FWIW, I have 'overdosed' coral snow 10 fold (literally) in my Acro tank and it did not affect anything. Instead of 10 ml, I dosed over 100ml. The fish came up to the glass with a WTF are you doing look on their faces as they swam in 'milk'. It took longer than usual to clear. lol
 
Salinity was 1.023 this morning. Blew the rock out/off with a powerhead and dif another 5 gallon WC using 1.027 salinity replacement water. Based on previous changes, that should bring tank up to 1.024.
 
So the tank was clear when I got up this morning. The skimmer neck looks like drywall compound lol.

IMG_20230212_170353873.jpg


Here's the cyano I'm dealing with. It's thick and really hangs on and is clinging to the euphyllia. Some is green some is red.

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My MB7 is a couple years old so I should get something fresh. I was looking at different bacteria products today. Man there is a lot of them now.
 
Salinity up to 1.024. Everything is looking good. Went to Petco to get a bit more sand. So, it’s looking much brighter in the tank. Actinics off as I’m working in the tank now.
 

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So the tank was clear when I got up this morning. The skimmer neck looks like drywall compound lol.

View attachment 32379570

Here's the cyano I'm dealing with. It's thick and really hangs on and is clinging to the euphyllia. Some is green some is red.

View attachment 32379571
View attachment 32379572

My MB7 is a couple years old so I should get something fresh. I was looking at different bacteria products today. Man there is a lot of them now.
That’s some odd looking skimmate.
 
The cyano is still hanging on here and there. I've got water mixing for another 5 gallon water change. If I can get to it tonight I'll add new GFO to my reactor, blow the rock off and do another water change.
 
Since brining the fuge online, the tank is looking so much better. I hate the look of pics with the actinics on, so here’s a pic under just 11K 175w Aquaconnect.
 

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So the tank was clear when I got up this morning. The skimmer neck looks like drywall compound lol.

View attachment 32379570

Here's the cyano I'm dealing with. It's thick and really hangs on and is clinging to the euphyllia. Some is green some is red.

View attachment 32379571
View attachment 32379572

My MB7 is a couple years old so I should get something fresh. I was looking at different bacteria products today. Man there is a lot of them now.

@kharmaguru how’s the experiment going?
 
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