the vial on the outside.
2. Add 6 drops of reagent 1 and shake until the liquid is evenly distributed.
3. Add 6 drops of reagent 2 and shake the same manner.
4. Add 6 drops of reagent 3 and shake the same manner.
5. Compare the colors after 5 minutes. Place the vial on the chart and com-
pare the colors from a position above under natural daylight. Avoid
direct sunlight.
6. Evaluate the level of free, toxic ammonia (NH
and the pH value according to the chart below.
7. Cleaning: Clean the vial thoroughly with tap water before and after each
test.
NH
pH value
4
7
7.5
0.5 mg/l
0.003
0.009
1 mg/l
0.006
0.02
2 mg/l
0.01
0.03
5 mg/l
0.03
0.09
10 mg/l
0.06
0.17
= harmless
= harmful with long-term exposure
= acutely toxic
nitrite-Test (fresh and saltwater)
NO
Reagent 1 contains 12% hydrochloric acid. Causes
2
severe burns. Irritating to respiratory system. In case of
contact with eyes, rinse immediately with plenty of
water and seek medical advice. In case of accident or if
you feel unwell, seek medical advice immediately (show
C Corrosive
the label where possible). If swallowed, seek medical
advice immediately and show this container or label.
Keep locked up and out of reach of children. Wear suit-
able protective clothing, gloves and eye/face protec-
tion.
Nitrite is formed as an intermediate product during the breakdown of fish
waste. Too high nitrite levels endanger the fish. Nitrite is formed from
ammonium and is converted into nitrate by bacteria in a functioning filter or
one that has been activated with sera nitrivec. Therefore also ammonium
and nitrate should be checked regularly, using the sera ammonium/ammo-
nia-Test kit and the sera nitrate-Test kit. We recommend using sera aqutan
and sera nitrivec in freshwater aquariums, sera aqumarin and sera
ammovec in saltwater aquariums, and sera KOI PROTECT and sera KOI BIO-
CLEAR in garden ponds, with every water change.
Directions for use: Shake reagent bottles well before using!
1. Rinse the measurement vial several times with the water to be tested,
then fill to the 5 ml mark. Dry the vial on the outside.
2. Add each 5 drops reagent 1 and 2.
3. Shake the vial until the liquid is evenly distributed.
4. Compare the colors after 5 minutes: Place the vial on the color chart and
compare the colors from a position above under natural daylight. Avoid
direct sunlight.
5. Cleaning: Clean the vial thoroughly with tap water before and after each
test.
Water quality results:
NO
Evaluation, measures
2
5.0 mg/l
toxic, immediately dose sera toxivec or sera pond toxivec sev-
eral times, and carry out a partial water change
2.0 mg/l
dangerous, dose sera toxivec or sera pond toxivec several
times, or carry out a partial water change
1.0 mg/l
harmful, dose sera toxivec or sera pond toxivec, or carry out a
partial water change
0.5 mg/l
tolerable, possibly dose sera toxivec and sera nitrivec, or sera
pond toxivec and sera KOI BIOCLEAR
0.0 mg/l
good, no action required
nitrate-Test (fresh and saltwater)
NO
3
Monitor nitrate easily, quickly and reliably with the sera
nitrate-Test kit.
Algae thrive whereas fish and plants become stunted if the
nitrate level is above 50 mg/l. We therefore recommend you to stay
informed about the nitrate level in your aquarium or garden pond. You can
lower nitrate levels by adding rapidly growing plants, using a slow flux filter
with sera siporax and/or carry out water changes more frequently (provid-
ed your tap water is low in nitrate).
) from the measured value
3
8
8.5
9
0.03
0.08
0.18
0.05
0.15
0.36
actual
0.11
0.30
0.72
NH
0.27
0.75
1.80
in mg/l
0.53
1.51
3.60
color chart:
a) freshwater
b) saltwater
Directions for use: Shake reagent bottles well before using!
1. Rinse the measurement vial several times with the water to be tested,
then fill to the 10 ml mark. Dry the vial on the outside.
2. Add 6 drops reagent 1 and shake the vial until the liquid is evenly distrib-
uted.
3. Add 6 drops reagent 2 and shake the same manner.
4. Add one measurement spoon (red) reagent 3 into the vial.
5. Close with the cover and shake vigorously for precisely 15 seconds.
6. Open the vial and add 6 drops reagent 4. Shake the vial until the liquid is
evenly distributed.
7. Compare the colors after 5 minutes: Place the vial on the color chart and
compare the colors from a position above under natural daylight. Avoid
direct sunlight.
8. Cleaning: Clean vial and cover thoroughly with tap water before and after
each test.
level
PO
3
4
In natural unpolluted water, we can find phosphate levels of up to 1.0 mg/l.
In aquariums or garden ponds, concentrations of 10.0 mg/l or more are
usual. They are the result of too many fish, foods with high phosphate lev-
els and plant fertilizers containing phosphate. A high phosphate level with
high nitrate values leads to algae bloom. Therefore, checking the phosphate
level in your aquarium or garden pond at regular intervals is important.
Freshwater aquariums and garden ponds should not have more than
1.0 mg/l of phosphate. Saltwater aquariums should not have more than
0.1 mg/l of phosphate. Frequent water changes (approx. 10 – 30%, once a
week), introducing fast growing plants, or in freshwater aquariums and in
garden ponds using sera phosvec and/or sera phosvec Granulat are
methods of reducing phosphate levels.
Directions for use: Shake reagent bottles well before using!
1. Rinse the measurement vial several times with the water to be tested,
then fill to the 10 ml mark. Dry the vial on the outside.
2. Add 6 drops of reagent 1 into the vial and shake the vial until the liquid is
evenly distributed.
3. Add 6 drops of reagent 2 into the vial and shake the same manner.
4. Add one heaping measurement spoon (white) of reagent 3. Close vial
with cover and shake. Then, remove the cover.
5. Compare the colors after 5 minutes. Place the vial on the color chart and
compare the colors from a position above at natural daylight. Avoid
direct sunlight.
6. The water is extremely low in phosphate or phosphate-free if the result
does not show any blue color. If the result shows dark blue color, the test
sample contains more than 2.0 mg/l of phosphate. Repeat the test with
a diluted sample. Further dilution may be required with repeated tests,
if the result cannot be matched with the color on the chart.
7. To do so, rinse the vial carefully with the water to be tested and fill up to
the 5 ml mark with this water. Top up to the 10 ml mark with distilled
water. Use sera aqua-dest or a pharmaceutical grade distilled water.
Repeat the test as described in items 2. to 5.
8. Compare the colors with the color chart once again. Please do not forget
to read the value given in the line "5 ml + 5 ml!"
9. If the resulting color still is dark blue, the phosphate level is 4.0 mg/l or
more. In this case, you should repeat the measurement choosing the
dilution "2 ml + 8 ml." Read off the value in the corresponding line. By
doing so, phosphate values up to 10.0 mg/l can be monitored.
10. Cleaning: Clean vial and cover thoroughly with tap water before and after
each test.
Fe
Iron is one of the many important nutrients for all aquatic plants.
Insufficient iron levels will adversely affect plants. However, too high iron
levels in the water harms fish. Not all kinds of iron are useable by plants,
therefore tap water containing iron is disadvantageous. Yellowed aquatic
plant leaves are a clear symptom of iron deficiency. Levels above 0.5 mg/l are
phosphate-Test (fresh and saltwater)
Reagent 1 and reagent 2 contain 14% sulfuric acid.
Causes severe burns. In case of contact with eyes,
rinse immediately with plenty of water and seek
medical advice. In case of accident or if you feel
unwell, seek medical advice immediately (show the
C Corrosive
label where possible). If swallowed, seek medical
advice immediately and show this container or
label. Keep locked up and out of reach of children.
Wear suitable protective clothing, gloves and
eye/face protection.
iron-Test (freshwater)
Reagent 2 contains sodium thioglycolate. Harmful if
swallowed. May cause sensitisation by skin contact.
Keep out of the reach of children. Avoid contact with
skin. Wear suitable gloves. If swallowed, seek medical
advice immediately and show this container or label.
Xn
Harmful
7