Backyard Aquaponics
A place to discuss aquaponics

I have a potassium Def I am pretty sure. New shoots not greening. How do I add potassium safely? Houston please advise!

There is lots of information on this. Simply use the search function on the forum and you will find a lot of information about different deficiencies. Here is the link for one that has a lot of information on potassium.

bury a couple of clean bananas in the growbed

there's plenty of potassium suppliments out there. i have a slight problem with it in my tomatoes but nothing else oddly.
i mixed up a spray bottle of iron,potassium and magnesium and it's fixed my plants right up, though they still show signs of N deficency (need more fish).
I suspect the source of the problem is my little pond pump isn't moving the solids, so i'm missing a critical part of the system.

Are you serious Jaymie?

Absolutely Slicer, she is, and so have many others.....

Trust us... it does work.... bananas are very high in Potassium.

What happens when it breaks down? Do I need to worry about that?

It creates those nice solids timmy was referring to not having because of his little pump... I shouldn't expect you have anything to worry about

potassium bicarbonte might give you a quicker response, but it will raise the ph, use with caution

Yep I put a banana in each of my growbeds. Three days and every thing looked real nice.

dt that was timmy talking about the pump problem and solids.

Will the glucose and sucrose in the banana feed the bacteria too? Similar to Molasses?

Don't see why not. I am not a biologist. Basically I just do it and if it greens and grows then I know I am on to something. Someone smarter than me will have to answer that one.

VB did the banana thing too I think

Yeah, vb buried bananas also...didn't he also try growing a paw paw tree in his GB (singular)

Point about bananas is have they been chemically treated and will this cause problems in the system..vb used home grown bananas from memory

that's why I said clean bananas