overdosing manganese (Mn) on purpose

[Randy Holmes-Farley Verified Community Expert]

Tying this back to the other thread on ATS and how it might deter algae in the display, algae can use a massive amount of manganese, and only 1-2 grams of new growth in a day can entirely strip a tank of manganese in the water, so it will be interesting to see your results.

 

[VintageReefer]

Tying this back to the other thread on ATS and how it might deter algae in the display, algae can use a massive amount of manganese, and only 1-2 grams of new growth in a day can entirely strip a tank of manganese in the water, so it will be interesting to see your results.

So based on the last screenshot, A standard dose is .3 ml/day

I am dosing .4ml/day

And I should be dosing .3 standard + .3 for having macro + .3 for large amount of coral. So I should dose .9ml / day?

 

[Reefing_addiction]

Some trace elements are needed. But in high concentrations, it becomes toxic. Does this apply for manganese?

Manganese is one trace element that gets rapidly depleted within a day or two. Every time I've sent an ICP test, it shows as not detectable. I've made a dosing dilution of Manganese Sulfate Monohydrate (MnSO4.H2O) to add 1ml to my tank to bring it to natural sea water concentrations of Mn.

If I were to overdose by twice or quadruple every day (not knowing how much corals or algae uptake), and eventually overshoot NSW, will this be detrimental to my tank?

So I was dosing 5-6 ml of moonshiners manganese daily into my 75 g (sump is a 40 breeder. When I stated in June my Mn was .72

Then I started dosing my on home made mix and cut my dosing back to 2 ml a day (yup made it strong). I recently tested and was at .92 a day


Can you over dose manganese yea


https://www.sciencedirect.com/science/article/pii/S0025326X23006756

Looks like for at least two species Mn becomes toxic at greater that 1,900ug/l (yes 1,900)

 

[Reefing_addiction]

 

[Makara23]

I just wanted to circle back for an update. Every other day for over a year, I've been dosing 20x Mn concentration of natural sea water with no negative effect. But I also can't confirm it's helping with anything.

The reason for my dosing is because ICP always shows Mn as not detectable, but also I have a couple gonis that could benefit from Mn. The gonis are doing great, but they were doing great even before Mn dosing.

 

[Randy Holmes-Farley Verified Community Expert]

Thanks for the update. :)

 

[Hans-Werner]

I just wanted to circle back for an update. Every other day for over a year, I've been dosing 20x Mn concentration of natural sea water with no negative effect. But I also can't confirm it's helping with anything.

The reason for my dosing is because ICP always shows Mn as not detectable, but also I have a couple gonis that could benefit from Mn. The gonis are doing great, but they were doing great even before Mn dosing.

... and ICP is still showing Mn as not detectable?