Can anyone tell me deficiencies in my aquaponics system?

[SaltyNuts]

So those are okra plants in my 55 gallon aquaponics set up. Leaves are curling up hard-core (they have gotten worse since I took pictures below), and you can see lots of greens fading to lighter greens, mainly in between the veins. And some "branches" falling off, but I am pretty sure that is from a potassium deficiency.

Thanks for any help!!!!

 

[mindless1]

We'd have to know what you're feeding them, and what okra need. Is this same setup working for other plants?

Why hydro for okra? They grow very well in the ground, with no hassle besides the burden of constantly picking okra. Plus they get huge, I can't imagine the size of a hydro setup to make it worth the bother to go pick okra twice a day, to have enough plants where you're not just picking a couple at a time.

Anyway if you're low on potassium, why not just add that?

 

[SaltyNuts]

Thanks mindless1.

Okra just because. I had tomatoes before, they did OK, but did not produce much fruit. I have like a billion okra seeds (from planting outside, they grow nuts like you said) so wanted to give them a shot.

I feed the some masterblend, magnesium sulfate, and a little calcium nitrate (not too much as fish are supposed to be making the nitrates).

I was hoping someone might know what decencies those leaves are showing.

Thanks.

 

[mindless1]

There's the thing, if you're already feeding them the macronutrients, there's a lot of micronutrients that are in soil so less seldom experienced deficiency compared to hydro. If I had to make a random guess, it would be a zinc or iron deficiency.

 

[SaltyNuts]

So, masterblend is supposed to have all the micronutrients plants need. Masterblend + Magnesium Sulfate + Calcium Nitrate are supposed to be the complete package. But I will try and add some zinc and iron. Thanks!

 

[mindless1]

¯\_(ツ)_/¯ Ask Masterblend? I won't be much more help because I try to simplify my grows. The most I do for okra is give seed a day to soak before sewing the seeds, and stake them if a storm with strong winds comes before their trunk gets woody enough to withstand it. Well... I mean there's the normal soil prep, compost including egg shells, occasional fertilizer (usually 10/10/10), along with the epsom salts maybe once a month.

 

[SaltyNuts]

Man I dunno mindless1, I don't think "Masterblend" is a company that I can ask a question to so much, I think it is just a kind of known blend of nutrients, everything but calcium, nitrate (hence the calcium nitrate), magnesium and sulfate (hence the magnesium sulfate, i.e. epsom salt).

Shit is getting worse, let me take a new picture. I added some window cleaner (calcium chloride) to see if lack of calcium is the problem, that apparently is a big problem in aquaponic systems pretty often...