Element levels when using Chaetogro?

[Randy Holmes-Farley]

I’m thinking of developing some mixed diy trace/minor/major element recipes for different purposes using readily available chemicals.

One I have in mind is for growing macroalgae and turf algae. Let’s call this recipe R1. Lol

I was thinking to base it off of published analyses of macroalgae and/or turf algae. R1 won’t include N and P, but a related recipe will be an N and P supplement to use at a fixed ratio to R1 to provide much of what such algae need from seawater. A macroalgae grow out tank might use both, while a refugium or ats might only use R1 or R1 plus one of the N and P, depending on tank values of N and P.

In any case, in preparation for such an endeavor, I’m looking to see if anyone has icp data on tank values when using commercial chaetogro by Brightwell as the primary trace element additive, and who grows a significant amount of macroalgae, or turf algae.

Reason being, If there’s a general trend toward chaetogro having excessive or deficient levels of its listed components, I could also take that into account. I know it will be impossible in any single case to distinguish use by a refugium or ats vs everything else in the display, so I’m looking for general trends.

Thanks in advance for any input.

 

[Subsea]

Randy,
I grow macro algae commercially. At present, Gracilaria Hayi is a mainstay.

I have some older analysis of Gracilaria Parvispora from a regional agriculture labaratory and am receiving 1 lb of G. Parvispora (Red Ogo/Tang Heaven Red) shipment this week from IPSF.

Happy to be involved.

 

[Garf]

Randy,
I grow macro algae commercially. At present, Gracilaria Hayi is a mainstay.

I have some older analysis of Gracilaria Parvispora from a regional agriculture labaratory and am receiving 1 lb of G. Parvispora (Red Ogo/Tang Heaven Red) shipment this week from IPSF.

Happy to be involved.

Is Guillards formula not sufficient? There's a full list on the web on how to make that.

 

[Subsea]

Is Guillards formula not sufficient? There's a full list on the web on how to make that.

While I have used F2 for phytoplankton, I prefer using liquid kelp concentrate for seaweed. Also, fast growing macro algae biomass uses double the N of phytoplankton. For that, I dose ammonia.

 

[Randy Holmes-Farley]

Is Guillards formula not sufficient? There's a full list on the web on how to make that.

It lacks iodine, and the ratios were designed for diatoms. I’m not sure those ratios are best for typical macroalgae, although it may be, and it’s a good point to compare it to the macro compositions.

 

[Garf]

It lacks iodine

I guess adding lugols won't be recommendation.

 

[Viking_Reefing]

Well I can definitely tell you that it spiked my iodine. Here’s a ICP result after using it for a few months: https://aquaforestlab.com/results/C5IyPxec42734

For reference sake here’s the closest test I did before I started chaetogrow: https://aquaforestlab.com/account/samples/37967

Oh and no, I didn’t dose anything else with iodine in it.

 

[Randy Holmes-Farley]

Well I can definitely tell you that it spiked my iodine. Here’s a ICP result after using it for a few months: https://aquaforestlab.com/results/C5IyPxec42734

For reference sake here’s the closest test I did before I started chaetogrow: https://aquaforestlab.com/account/samples/37967

Oh and no, I didn’t dose anything else with iodine in it.

Perfect, thanks. Unfortunately, iodine seems to be the one main component that Brightwell doesn’t give a concentration for in the description I saw. lol

 

[Randy Holmes-Farley]

FWIW, the first link works but the second needs a password.

 

[Garf]

Well I can definitely tell you that it spiked my iodine. Here’s a ICP result after using it for a few months: https://aquaforestlab.com/results/C5IyPxec42734

For reference sake here’s the closest test I did before I started chaetogrow: https://aquaforestlab.com/account/samples/37967

Oh and no, I didn’t dose anything else with iodine in it.

I'm getting a login screen for your second link. Interesting that cheatogrow appeared to elevate iodine so much. How much algae were you actually growing, it's very watery, lol.