Backyard Aquaponics
A place to discuss aquaponics

Hi, I put my indoor system up february 1, 2012 , after to months the nitrate levels are around 50ppm. However the cucumbers leaf gets yellowish and have brown spots on them. Why is that?

I have 4 full spectrum lights 90% 6500k (965) 58W
19-20 celcius in FT.

I put Bass (Perca Fluviatilis) in my FT got 17 of them, around 15 cm each(they sureley fancy bloodworms!). There is so far only one GB using a flooding system (tried flood and drain but the fittings in Sweden sucks).

I few days ago I put som worms in the growbed, bad idea?

the worms are a good idea..
how big is your ft, and how big is your gb?
what kind of food are you feeding besides bloodworms?
you might need to use maxicrop with iron to help the plants with nutrients

I also have this problem with my indoor system mrkontra. I am yet to find a reason. I am using LED grow lights though. I also give an occasional dose of worm tea. Nothing seems to make these plants want to grow. I am close to giving up on herbs and getting an indoor low light plant.

I think "Chelated Iron" may help in greening up your plants. It maybe called something else "Iron Chelates" etc...
Is you pH high at the moment?
I've heard of high.... or maybe it was low ph locking out minerals to plants or something like that.. Rupe will be up soon.....he'll know

The other one I can think of is "Seasol"... a liquid Seaweed fertalizer.

It is actually working though in the beginning all plants grew tall and tiny but after a while when the nitrates started to show I noticed a difference. Plants grew sturdier and especially the tometo plants and mangold is really looking good. I´ve got tomatoes, cucumber, carrots, basil, mangold, silantro, parsil and throwed in even more seed that havn´t come up yet.
Tried to upload a picture but it´s to big

Intressting! The ph is 6.8, no nitrites but nitrate level is 50ppm. I can´t find anything like seasol in my country, other names or something else in it that I can search for?
Have to look up the Chelated iron!

FT 700L
GB 270L

Bloodworms, maggot, worms and a local Isopoda to some extent. I´ve tried koi pellets, silk larvae, shrimp but the refuse to eat it.

maxicrop with iron is the same as seasol with iron (chelated iron)
the food you use for the fish makes a difference in how your plants grow..
bass should get a high protein diet, look for gamefish pellet food (same stuff used for trout)
try letting the pellets get wet overnight, i use a plastic tub with a lid... soak in water overnight (i use about a cup of pellets to a 1/4 cup water), then lightly squeeze the pellets when you feed, they'll sink, only feed a little at a time, but once they are hungry, they'll start eating pellets.. then you slowly add dry pellets with the wet, eventually just giving dry pellets

Awesome mate. Makes me look even more retarded though

I found this that might help you out:

http://www.dpi.nsw.gov.au/agriculture/horticulture/greenhouse/pest-disease/general/cucumber-nutrition

thanx for the link, good info!

Your greens look good, whats the problem?

Use tinypic.com they give you a link to use in postings and as far as I know, pics there don't expire like on photobucket. And you don't need an account.

Thats an old photo on my aquarium thread. Will put some more up today.

If the leave of the plants are getting yellow than it might be because of lack of the nutrients or may be lack of the lights. so need to be identified and cured immediately.

where does the yellowing start ? on the new leaves or does it start on the older bigger leaves ? what type of yellowing , spotted or whole leaves ? are the leaves curling ?