For
fish,


this

around

a

pH


of


6.5


to


8.0
For
plants,


this

around

a

pH


of


4.5


to


6.5.
Hence

a

compromise


of


pH


must


be

made


to


accommodate


the


requirements


of


the


fish

and

plants.



The
optimum

pH


is


around

6.7


to


6.9.


This


will


protect

the


fish

against


ammonia

toxicity

and

allows


the


plants

to
uptake

the


nutrients


they


require

for


growth.



pH


may


be

tested


with


simple


pH


kits

and

electronic


pH


meters
obtainable
from

aquarium

stores


at


various


prices

according


to


how


extravagant


you

wish


to


be.
Conductivity
-


is


a

measurement


of


the


amount


of


dissolved

nutrients


in


the


water.
The

higher


the


conductivity


is,

the


more


nutrients


there


are.
An

acceptable


amount


of


nutrient


availability

in


the


water


is


an

EC


of


around

2.0


(2,000


microsemens/cm).
However,

it

must


be

remembered

that


plants

will


grow

at


lower


conductivities.
Commercial

Aquaponics
Controlled
Environment

Agriculture
A
commercial


aquaponic

growing


system

will


allow


you

to


grow

a

premium


crop


in


an

environmentally


friendly
manner.


A

controlled


environment


can

provide


the


ultimate


of


conditions



crops


need


for


record


production.



A
greenhouse

can

provide


an

aquaponics

system

with


just

such

a

controlled


environment.



Combining


the


two
together

is


without


a

doubt


the


ultimate


method


for


food


production.
"A

rose


by

any

other


name


is


still


a

rose".



Greenhouse,


hothouse,


glasshouse...these


are


all


terms

used

to
describe

structures


made


with


plastic


or


glass


coverings


to


house


a

crop.



A

greenhouse


featuring


precise
environmental

controls


will


provide


and

enhance


the


environmental


conditions


necessary

to


produce

large
crops

by

meeting

all


its

needs.
Though

it

has

the


greatest


potential


to


produce

food


stuffs


for


the


world,


commercial


aquaponics

is


the
youngest
sector


of


agriculture

to


date.



The


USA,


Canada,


Mexico,


Australia


and

an

increasing

number


of
underdeveloped
countries

have

commercial


aquaponic

systems

in


place


however,

the


total


number


is


still


to
small

to


have

the


potential


impact


possible.



Commercial


aquaponics

is


still


a

new,


though

it

is


far


from

being
unproven,

and

the


development


of


newer


technology


in


this

field


is


progressing


by

leaps


and

bounds


around
the

world.
Aquaponics

has

the


potential


to


fill


an

entire


world's


requirements


for


premium


quality


food


stuffs


or


on

a
smaller

scale


it

can

produce

staples

for


a

small


community


or


village


in


a

developing


country.



Most
commercial

systems

use

greenhouses


to


house


the


plants

and

fish

against


harsh


environmental


conditions
and
pest,


insects

or


otherwise.


A

greenhouse


setup


is


considerably

more


expensive


to


setup


in


comparison

to
an
open


system

therefore,


maximizing


of


floor


space

use

is


necessary

to


reduce

costs


and

increase
production.
A
commercial


aquaponic

system

utilizing


maximum


floor


space

and

a

strict


balanced

diet


for


the


fish

are


the