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INTERNATIONAL SURVEY ON REEF AQUARISTIC Results

INTERNATIONAL SURVEY ON REEF AQUARISTIC

WORLD

All numbers in % n = 683

#1 A SEX
male 93
female 7

 

#1 B AGE  %
0-9 years 0
10-19 years 3
20-29 years 23
30-39 years 40
40-49 years 19
50-59 years 7
60-69 years 2
>70 years 0

 

#2  I have been an aquarist for **** years... 
0-1 year 6 %
1-3 years 10
4-6 years 14
7-10 years 17
>10 years 52

 

#3 I have been a marine aquarist for **** years… 
0-1 year 16 %
1-3 years 21
4-6 years 20
7-10 years 18
>10 years 25

 

#4  I was motivated to try marine aquaria be cause I… 
Was impressed by anothers aquarium 30 %
Read about the natural coral reef 11
Read about the coral reef aquarium 14
Saw an impressive aquarium in a pet shop 22
I am especially interested in reef biology 
and/or in biology in general
28
Visited a coral reef 11
Other causes 15

 

#5  My main interest in marine aquaristic is 
Stony corals 20 %
Other cnidaria 22
Invertebrates in general 55
Fishes 34
Other organisms 4
The technique only 7

 

#6 A33 I now have **** marine aquaria 
1 aquarium 59
2 to 3 aquaria 31
4 to 10 aquaria 7
More than 10 aquaria 2

 

#7  My aquarium contains **** liters of water  
including the filter volume
<100 liters 5
101-200 liters 14
201-500 liters 42
501-1000 liters 28
>1000 liters 10

 

#8  My main aquarium has been in operation for **** years 
<=1 year 33
1-2 years 23
2-5 years 30
>5 years 14

 

#9 My main aquarium was bought a a finished tank or I made it myself… 
bought as a complete aquarium 62
made it myself 37

 

#10   My main aquarium must be classified as… 
a mixed show aquarium with a variety 
of invertebrates and fishes
68
an aquarium where the fishes dominate 6
an aquarium for clown fishes and 
host sea anemones
2
a stony coral aquarium 15
a soft corals aquarium 8
a special aquarium 3

 

#11  I have **** animals that I cannot identify 
a lot of 3
some 14
few 22
almost none 60

 

#12  On a scale from 5 (best) to 0 (worst) I  
would say that my success with reef  
aquarium so far has been… 
0 0
1 1
2 5
3 29
4 47
5 16

#13 The biggest problem I have had with my aquarium has been linked to…
algae 35
technique 6
lack of knowledge about the organisms 11
water chemistry 22
other topics 25

#14 I am a regular reader of an aquarium magazine…
yes 77
no 22

#15 I read most about…
technique 59
the biology of reef organisms 53
other topics 8
I mostly view the pictures only 4

#16 Prior to starting my aquarium I read…
a lot 57
some 27
little 8
almost nothing 7

#17 I am a member of an aquarium club ?
yes 41
no 59

#18 My membership in the club is **** for developing the skills
needed for the hobby (ANSWERS FROM THOSE WHO
HAVE ANSWERED "yes" IN # 17 ONLY)
very important 61
of minor importance 25
not important at all 14

#19 I have dived on a coral reef ?
yes 52
no 48

#20 My filter technique is at first hand based on…
undergravel filter 5
external biological filter 30
protein skimming 90
carbon filter 20
mechanical filtration 27
ozone 8
UV 10
others 10
I use no filters at all 1

#21 I addition I occasionally use…
undergravel filter 1
external biological filter 7
protein skimming 5
carbon filter 30
mechanical filtration 20
ozone 7
UV 8
others 7

#22 For adding calcium I use…
no adding 11
"kalkwasser" 53
"kalkwasser" with CO2 2
"kalkwasser" with CO2 and pH control 3
carbon reactor with calcareous material
and CO2-adding
12
carbon reactor with calcareous material,
CO2-adding and pH control
10
other type of calcium adding 27

#23 I use the method from #22…
regularly or continuously 77
only now and then 12

#24 I use **** l/h as internal circulation
A fixed 52
variable 37
B 0-1 times the aquarium volume 4
1-2 times the aquarium volume 8
2-3 times the aquarium volume 5
3-5 times the aquarium volume 15
5-7 times the aquarium volume 11
7-15 times the aquarium volume 30
>15 times the aquarium volume 9

#25 My main illumination is...
light tubes 44
metal hallide lamps 60
other kind of illumination 4

#26 In addition I use…
blue actinic light tubes 76
other kind of light tubes 11
moonlight 14

#27 My main illumination is equal to about
**** Watt per liter aquarium volume
<1 W 32
1-2 W 35
2-3 W 6
3-4 W 5
>4 W 5

#28 I follow these parameters
electronically on a continuous basis…
pH 47
temperature 55
redox potential 20
salinity 20
others 24
none 2

#29 I measure the following parameters now and then…
pH 50
temperature 42
redox 6
salinity 72
calcium 68
nitrate 78
nitrite 48
phosphate 56
others 33

#30 The following parameters are those that I find
hardest to regulate to an acceptable level…
temperature 13
redox 5
salinity 2
calcium 20
nitrate 16
nitrite 3
phosphate 16
others 13
I don't know 12

#31 My decoration is mainly composed of…
live rocks 87
calcareous rocks or other type of rocks 25
artificial material 2
dead coral skeletons 7

#32 Amount of live rock in relation to the aquarium volume…
< 0.1 kg/l 29
0.1-0.2 kg/l 37
0.2-0.3 kg/l 11
0.3-0.4 kg/l 5
0.4-0.5 kg/l 2
> 0.5 kg/l 5

#33 When I decorated the aquarium I concentrated on…
making an artistic decoration 34
to copy a natural habitat designed for
the animals that i wanted to keep
64
to copy another's aquarium decoration 3
to make a decoration that could house
as many corals as possible
17

#34 I am pleased with the decoration as it is now ?
yes 78
no 20

#35 I regularly have to adjust and/or rebuild
the decoration and/or the corals ?
yes 11
no 85

#36 A On a daily basis I spend **** maintaining my aquarium…
< 1 hour 66
1-2 hours 27
>2 hours 5

#36 B Of the time given in #36A I spend about ** %
studying the organisms and ** % working with the technique
Studying the organisms: 0-24% 6
25-50% 22
51-75% 26
76-100% 36
Working with the technique: 0-24% 36
25-50% 26
51-75% 22
76-100% 6

#37 When I had completed the decoration I introduced
the first corals (stony and/or soft) after…
1-7 days 10
1-2 weeks 7
2-4 weeks 12
1-2 months 26
2-4 months 24
> 4 months 12

#38 On a scale from 5 (best) to 0 (worst) I would
say that practicing the reef hobby has in general
increased my knowledge in biology…
0 0
1 2
2 3
3 19
4 30
5 41

#39 The advises I get in my pet shop are in general…
very trustfull 20
moderately trustfull 44
little trustfull 23
not trustfull at all 10

#40 My pet shop informs me on the "cyanide-catching-problem"…
never 58
sometimes 25
regularly 9
I have not heard about fishes being caught with cyanide 3

#41 My pet shop advised me to add corals (soft- or stony)
to the aquarium as soon as possible after completing
the set-up ?
true 6
false 67
don't know 20

#42 My pet shop advised me to wait several weeks and observed
how the aquarium behaved after completing the set up before
I added any corals (soft or stony)…
true 58
false 15
don't know 20

#43 If I have a biological problem with my aquarium,
my pet shop advises me to…
read about relevant literature and collect more information
before suggesting a solution
17
to solve the problem by adding additives and/or buying new
and better equipment
30
to use the present technical equipment in a better way and/or
to wait and observe
23
I don't know what they will say 26

#44 I have about **** colonies of corals in my aquarium
Colonies per. liter aquarium volume < 0.05 53
0.06-0.10 17
0.11-0.15 4
0.16-0.20 1
> 0.20 2

#45 Of the number given in #44 about **** % come from
off springs that I have got from fellow aquarists or
from mother colonies in my own aquarium….
none 15
1-10% 20
11-20% 12
21-30% 11
31-40% 4
41-50% 5
>50% 8

#46 Stony corals compose about **** % of all my corals…
none 8
1-10% 14
11-20% 10
21-30% 8
31-40% 4
41-50% 8
51-60% 4
61-70% 4
71-80% 6
81-90% 5
91-100% 5

#47 I have regular access to coral that have been
grown in coral farms ?
yes 16
no 61

#48 CANCELLED

#49 If corals grown in coral farms were available in
my pet shop, I would definitely have preferred
these to wild caught corals ?
yes 69
no 8

#50 If corals grown in coral farms were available in my
pet shop, I would definitely have preferred these to
wild caught corals, but only if they were cheaper than
wild caught corals ?
yes 28
no 49

#51 If corals grown in coral farms were available in my pet shop,
I would definitely have preferred these to wild caught corals,
but only if they were more colourful than wild caught corals ?
yes 23
no 54

Created by liquid
Last modified 2005-02-03 06:18
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