Backyard Aquaponics
A place to discuss aquaponics

My system as of 4/27/2014 made of IBC's:

• 3 grow beds each 9" deep, 47" x 38" = ~9.3 cubic feet or 69 gallons
• 275 gallon fish tank
• ~150 gallon sump tank
• total system capacity 450 gallons
• CHOP2 configuration
• dual 3/4" straw siphons from fish tank to sump
• 3/4" lines from dual pumps - Rio Plus 1700 & Eco Plus 396 (~2000 GPH)
• Air pump 951 GPH with dual 4" air stones (elemental solutions
• modified bell siphons (tubing plumbed from top to bottom of bell for better cutoff)
• x4 Fluvall 300W heaters

nice to see another buckeye! what kind of fish are you planning on using?

I just got 50 blue tilapia, and they are doing well.

Nice looking system.

You said in another thread that your's isn't doing too well. What are the plants doing? Just slow growth, or are they yellowing off and dying or something?

Columnmn
Plants are growing very slowly, some are yellowing, leaves on snap peas are dying - just some of them. Unable to get pH below 8.

Obvious question, but have you added any Chelated Iron?

And have you done a vinegar test on your media to test if it's shooting your PH up?

How much light does your system get? That could be affecting your growth a lot..

Columnmn
I havn't added chealated iron, will do so. I tested the media with vinegar, no reaction.

Tom77
I have 3 large windows south facing. Do you think I should supplement?

Have a look at the plants, see if they look leggy. So long stems stretching out, like they are looking for additional light.

https://www.google.com.au/search?q=legg ... 66&bih=667

You might only have light coming in the morning (or afternoon), if so, you might need something extra. Or take it outside.