Manganese supplement for Goniopora?

[Treefer32]

I dose what's in red sea trace elements a, b, c , d once a week. In a 340 gallon tank and have 4 colonies of goni doing amazing two colonies are almost 5 inch balls with long tentacles! I wouldn't worry so much about exact numbers. Dose some amount per week and evaluate things. Observe.

 

[Terrapod]

Again, 2 ug/L seems high to me. Manganese is also rapidly depleted.

If you try to split that dosing over many days you may never reach the target.

If you dose 1.5 ug/L all at once, then in a week it may be back to undetectable.

If I were to dose manganese, which is a reasonable plan, I'd personally dose about 100 ng/mL per day and then get an ICP test after a couple of weeks of dosing.

Will try and work that out!

 

[Terrapod]

I dose what's in red sea trace elements a, b, c , d once a week. In a 340 gallon tank and have 4 colonies of goni doing amazing two colonies are almost 5 inch balls with long tentacles! I wouldn't worry so much about exact numbers. Dose some amount per week and evaluate things. Observe.

The point is I am not spending money on rodi from red sea, so trying to dial in as best possible by buying mineral salts.

 

[Terrapod]

Again, 2 ug/L seems high to me. Manganese is also rapidly depleted.

If you try to split that dosing over many days you may never reach the target.

If you dose 1.5 ug/L all at once, then in a week it may be back to undetectable.

If I were to dose manganese, which is a reasonable plan, I'd personally dose about 100 ng/mL per day and then get an ICP test after a couple of weeks of dosing.

I assume you mean Ng/L and not Ng/ml?

 

[Randy Holmes-Farley]

I assume you mean Ng/L and not Ng/ml?

Sorry, yes, I fixed it. We use ng/mL for drug in blood concentrations at work, so that's what gets typed reflexively.

 

[Terrapod]

Sorry, yes, I fixed it. We use ng/mL for drug in blood concentrations at work, so that's what gets typed reflexively.

And this manganese, I can dose it at room temp out of a bottle via doser? Won't go funny on me?

 

[Randy Holmes-Farley]

And this manganese, I can dose it at room temp out of a bottle via doser? Won't go funny on me?

Yes.

 

[Treefer32]

I meant that chasing numbers especially nano numbers is a bit difficult. I can't keep elegance alive to save my soul. I don't know what's wrong with my water. Would I do what you're doing to have one, probably not. There's so much that impacts water chemistry that we cannot control everything. We can manage things. But you're talking about pure control of specific elements.

I do not use water changes to manage trace elements. I simply dose them based on the bottle and dose 1-2 times a week. If things lose color or look a little droopy I'll dose more. But so far, this has worked for me.

As Randy indicated, algae consumes a lot of the trace elements. Whether it's algae on the rocks, in a scrubber, or in a refugium, there's algae in our tanks that consume minerals in much larger quantities than we dose.

I do maybe a water change every 6 months. If that. I do an ICP test once a year to check things. The result is always come back with some trace elements below normal and the rest normal.

I keep the corals I want alive with my current practices. My point is worry less about the actual numbers and more about how to make sure the animals are fed!

 

[Terrapod]

I meant that chasing numbers especially nano numbers is a bit difficult. I can't keep elegance alive to save my soul. I don't know what's wrong with my water. Would I do what you're doing to have one, probably not. There's so much that impacts water chemistry that we cannot control everything. We can manage things. But you're talking about pure control of specific elements.

I do not use water changes to manage trace elements. I simply dose them based on the bottle and dose 1-2 times a week. If things lose color or look a little droopy I'll dose more. But so far, this has worked for me.

As Randy indicated, algae consumes a lot of the trace elements. Whether it's algae on the rocks, in a scrubber, or in a refugium, there's algae in our tanks that consume minerals in much larger quantities than we dose.

I do maybe a water change every 6 months. If that. I do an ICP test once a year to check things. The result is always come back with some trace elements below normal and the rest normal.

I keep the corals I want alive with my current practices. My point is worry less about the actual numbers and more about how to make sure the animals are fed!

My tank isn't a nano, nor have I ever had feeding issues.

My icps are strong with the exception of a few trace which need topping up.

I refuse to pay for branded reef supplements, due to their makeup and massive dilution making them very weak.

I don't see any issue with dialling in trace once a month to keep the tank in its best condition.

Dosing trace based on droopy corals is not likely to be trace, nor do I feel water changes once a year is a good approach but there are many ways to skin a cat!

Good luck.

 

[tom66645]

Why is Manganese so expensive?

Buy manganese sulfate and make yourself, it'll last a lifetime

 

[tom66645]

Buy manganese sulfate and make yourself, it'll last a lifetime

I just bought 1lb, it should last about 300 years

 

[reefer333_]

@Randy Holmes-Farley would this Manganese product be ok to use to dose manganese into the tank? Wanted to experiment with dosing Manganese for my gonis. Thanks.

 

[Randy Holmes-Farley]

@Randy Holmes-Farley would this Manganese product be ok to use to dose manganese into the tank? Wanted to experiment with dosing Manganese for my gonis. Thanks.

That should be good. I’d try to open the capsules and use just the inside, if possible.

 

[reefer333_]

That should be good. I’d try to open the capsules and use just the inside, if possible.

Thank you very much, @Randy Holmes-Farley.

Would you mind double checking my calculation, please?

So you said you would personally dose about 100 ng/ L per day and check with ICP after a couple of weeks.

My tank total volume is about 100 gallons. (379 L)
100 ng/L x 379 L = 37,900 ng (0.038 mg) per day


1 Capsule from above link contains 8mg of Manganese. 1 capsule in 80 ml of RODI water.

8 mg in 80 ml = 8mg/ 80 ml = .1 mg/ ml = 100 mg/ L

0.038 mg/ 100 mg/ L = 0.00038 L or 0.38 ml daily dosing. Does it sound right to you? Thanks.

BTW, i used to have refugium with chaeto, but i take it out about 2 months ago and only dosing 36 ml of vinegar per day for nitrate, so I no longer has refugium on the system. Would you recommend I dose less than 100 ng/L per day or would you recommend the same amount?Thanks.

Cal 450
ALK 9
NO3 13.1
PO4 0.02 (dosing Brightwell NeoPhos to keep PO4 above 0.00)