Stuppy Aquaponics Blog

Light Feeding Crops to Grow in Cycling Aquaponics Systems

Posted by Conor Quinlan on Feb 21, 2017 11:46:11 AM

Light Feeding Crops: Light feeding crops are used when system start-up has just begun and a new batch of fish have been added to the system. After adding the fish to the system a short waiting period of 7-10 days is recommended before adding seedlings to allow nitrifying bacteria to begin manifesting. Wait until the first formation of nitrate is measured before adding your first crops. 

It is best to begin with just arugula in the float bed to ensure no deficiencies will occur as it is a very light feeder compared to most other crops. Once arugula show healthy growth then other light feeders can be applied to the float bed and crops can be added to the media bed. 

Light feeding crops are best to use: 

            -Between 7-10 days and 2 months after system initiation or re-set

            -When nutrient concentration is low (b/t 40-100 mg/L Nitrate, EC = 0.8-1.5 mS)

            -When fish are in their fingerling stage (b/t 10-50 grams)

           

Crops for the Float Bed 

Crop Type

Germination Temp

Growing Temp

Harvest

Spacing

Type

Arugula

40-55

50-65

40 days

2-4”

Both, most annual

Mustard Greens

40-55

60-65

40 days

4”

Both, most annual

Water cress

50-60

60-65

60 days

8”-1 ft.

Perennial

Cilantro

50-70

60-70

60-75 days

6-8”

Annual

Dill

50-70

70-90

70 days

8”-1 ft.

Biennial

Parsley

60-80

60-70

70-90 days

1 ft.

Biennial

              

Crops for the Media Bed 

Crop Type

Germination Temp

Growing Temp

Harvest

Spacing

Type

Chives

60-70

70-90

75-80 days

6”

Perennial

Lavender

70-75

65-75

70-100 days

1 ft.

Perennial

Mint

60-80

60-70

60 days

1 ft.

Perennial

Oregano

60-70

60-70

80-90 days

1 ft.

Perennial

Rosemary

60-70

60-70

80-120 days

6-8”

Perennial

Sage

60-70

70-90

75 days from transplant, 130 days total

1 ft.

Perennial

Thyme

60-70

60-70

80-100 days

1 ft.

Annual or perennial


Bean

60-85

60-70

50 days

4-8”

Mostly annual, some perennial varieties

Peas

40-70

60-65

60-70 days

4”

Annual

 

 

Topics: System Maintenance