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 Post subject: Nutrient Deficiency
PostPosted: Nov 29th, '15, 05:27 
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Hey peeps, can anyone help out with these butrient deficiency's? Photos below :)

Thanks in advance.


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 Post subject: Re: Nutrient Deficiency
PostPosted: Nov 29th, '15, 05:43 
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Holes in leaves, browning of tips and yellowing of lower leaves?


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PostPosted: Nov 29th, '15, 06:29 
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ltalbot01 wrote:
Hey peeps, can anyone help out with these butrient deficiency's? Photos below :)

Thanks in advance.


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 Post subject: Re: Nutrient Deficiency
PostPosted: Nov 29th, '15, 07:09 
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Hard to tell could be either magnesium or potassium. Looks a bit more like magnesium but you may want to give some of both.


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 Post subject: Re: Nutrient Deficiency
PostPosted: Nov 29th, '15, 08:46 
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I have blended a banana peel and placed in media for the worms, what can i add for magnesium thats organic and ok for the system? Or even better do you know a site that offers organic means of nugrients for aquaponics? :) easier for future reference.


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 Post subject: Re: Nutrient Deficiency
PostPosted: Nov 29th, '15, 10:29 
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Don't know of a site but if you explore a bit you'll probably find something.

Magnesium sulphate (Epsom Salts) would be considered organic by many, you'll have to decide on your own.

http://www.omri.org/generic-material/magnesium-sulphate

I suggest using this as a spray rather than adding directly to the fish tank. Check the carton if you get Epsom Salts - they probably will tell you what dilution to use. It's better to spray late in the day with this, it can cause leaf scorch in bright sunny weather.


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 Post subject: Re: Nutrient Deficiency
PostPosted: Nov 29th, '15, 10:30 
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Quote:
I have blended a banana peel and placed in media for the worms

you probably need more than that to get the level of potassium required.
issue becomes lots of additional solids in GB for small gain.

Quote:
Or even better do you know a site that offers organic means of nutrients for aquaponics?

some of the seaweed extracts and plant food are 'organic' - not always certified but basically and organic source.
not sure what the UK ones are, but basically the Australian Seasol recommended in this forum has some potassium and various other elements - search for it under 'seasol' and you will find the breakdown to compare UK products against.

but as a rule potassium etc is low in AP so you may have to go the potash in one form or another.

you can use blood&bone, manure tea bags, dynamic lifter tea bags etc to add some things but many/most are dominated by nitrogen and phosphorous which you don't really need lots of if your fish are delivering ammonia/nitrates. So you will need to be concious of what you are actually adding and whether you really need it.


[edit] plus the Epsom salts that Scotty mentions above.

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Darren ( dlf_perth )

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