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32
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Major
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useful background for all kinds of ‘fiShkéeping and With proper
_
application can benefit everyone.=
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Thé: Natural System*
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,
Environmental systems are said to be natural when they reproduce
the wild aquatic environment as closely as possible and use nature’s"
’
own
methods to ensure stability and completion of the nitrogen
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‘
cycle, without the use of artificial methods and external equipment…
The natural system is the successor
to the old—fashioned concept of
'
the ‘balan'ced aquarium’ and at its best it can
respects this theoretical ideal.
,
‘
if we assume that we have a large container, equipment to provide
the r‘equired amounts of heat, light and air, and enough Water ofthe
correct type in a matured state, we are fully prepared—toconsi‘der
,
'
the setting-up of a natural system environment (see Figure 5). Our
main objective, coupled probably with the need to produce a dec0ra—
tive and pleasing aqu‘arium, is to ensure that the gap in the nitrogen
,
the stages of mineralisation anddenitrification,Which
are
automatic as already explained, is
suitable nitrifyig
proœss so that the fishés’ wastes and other unwanted orgahicdebris
are rendered harmlesa -
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32
,
-
,
*
Major
'
"
“
useful background for all kinds of ‘fiShkéeping and With proper
_
application can benefit everyone.=
‘
"
'
'
_
'
'
,
Thé: Natural System*
_
.,
"
,
Environmental systems are said to be natural when they reproduce
the wild aquatic environment as closely as possible and use nature’s"
’
own
methods to ensure stability and completion of the nitrogen
__
‘
cycle, without the use of artificial methods and external equipment…
The natural system is the successor
to the old—fashioned concept of
'
the ‘balan'ced aquarium’ and at its best it can
respects this theoretical ideal.
,
‘
if we assume that we have a large container, equipment to provide
the r‘equired amounts of heat, light and air, and enough Water ofthe
correct type in a matured state, we are fully prepared—toconsi‘der
,
'
the setting-up of a natural system environment (see Figure 5). Our
main objective, coupled probably with the need to produce a dec0ra—
tive and pleasing aqu‘arium, is to ensure that the gap in the nitrogen
,
the stages of mineralisation anddenitrification,Which
are
automatic as already explained, is
suitable nitrifyig
proœss so that the fishés’ wastes and other unwanted orgahicdebris
are rendered harmlesa -
“
_
>
=
,
,
_'
,
.
,
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‘
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-’ ‘»
L‘. -:-"='" & :’.°-‘:f..:9î"°
.e-.—.'-.‘.
:1‘ '-‘x°-, !
'l, 5": '»‘-'—' ";: -«."-.—'; .'-7—,
_
!
! .‘.Æo‘s-,a
,; ‘,
'
'
,,
Gravel:bed'of'adeduate depth formant-roots … ,.
,
,
__
”Fig. 55;T'1_œ
-
,
“
1nvolymg plant«grthhand the use ofsoavengers
"
“
‘
organisms which are found in the fishes’
_
_
‘
‘
may be included in the gravel bed to encourage a;1ush‘ ‘gerth}âôfrooædplants
—
,Çf«he“sa1r—bübble:column_;ensureS;adequate
,_
,
,
_
,
_
»
,
.'
"natural system the ; Ëinh‘àbitat s
with ,…extreme care and '.
3
'
are
soon… ,
_
?
asp@SSlblesathatthemtrogmwdelsrun with &
10admgand ISn0tsub3ect texcess m1nerahsaüon
.
Thereasnfor
…
,
'
-
,.
“