Backyard Aquaponics
A place to discuss aquaponics

For the last 5-6 week my spinach hasnt grown. Have a look at the growth http://www.fishyplants.com/growth.html . Spinach is center back.

Could they be water logged? Should i lower stand pipe? Its 3cm below surface already.

seeing as everything else is growing its probably just a shit plant/ wrong seson for spinach . buy another brand form another place and see what happens

I will try that but it doesnt explain the black roots, i thought they should be white?

i've never had any luck with spinach in ap either.
I think spinach is a little picky about light and temperature, both of which i've got a bad position for.

Very few have had success with spinich where silver beet powers on

when i first started running the system on seasol my first batch of spinnach went off tap, i'll try find the species...

last 3 times no good.

Yeah must be something abt spinach and Ap. I never got spinach to grow well.

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my lot last winter worked great guns . . .

Roots look fine, yeah spinach is one of those things, sometimes works sometimes doesn't, a bit like corn.

And cucumbers - I grow more spinach than I can deal with, but haven't been able to produce a cucumber in 12 months

Great guys thanks. Will pull out the spinach and give it to my mum to plant in her soil garden.

I had some spinach seeds I threw in 8 or 10 weeks ago. They all germinated just before the freeze we had which killed off all but a few little plants. Since then, these have been growing like rockets. I had no idea spinach could get so big...leaves as big as your head. I think time of year has a lot to do with it. From what I can tell, it likes cool nights and nice warm days. In Texas, January (late winter) certainly seems to be a good planting time as long as it can be protected from the last freeze. I expect it will start getting a little too warm for it pretty soon.

What do you have for a system set up? I must agree with Zman the roots should be white. Due to the lack of growth over that time period and the dark color of the roots it look to me that your roots accumulated waste from solid waste of the fish and they could no longer get oxygen therefore leading to root rot and severe lack of growth.