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For this reason the addition of calcium compounds without hydrogen carbonate, such as calcium chloride, is
worthless. A calcium level of 400-440 mg/l has proved to be the optimum in marine aquariums.
Help for low levels:
Calcium levels which are too low can easily be raised with JBL CalciuMarin. JBL CalciuMarin contains the
correct proportions of calcium and hydrogen carbonate, so that the targeted organisms have the best possible
access to the calcium. Calcium reactors (available at specialist pet shops) also help attain the physiologically
correct increase in calcium levels.
Procedure:
NOTE: Always hold the dropper pointing vertically downwards when taking drops from drop bottle!
Exterior surface of dropper should be dry! Avoid bubbles!
1. Swill out the measuring beaker several times with the water to be tested.
2. Fill the measuring beaker to the 5 ml mark with the water to be tested. Use the enclosed syringe for exact
results.
3. Add 5 drops of reagent 1 and shake it to mix. The test result is not affected by any clouding which may occur.
Wait 1 minute.
4. Add 1 small measuring spoonful (narrow end of the enclosed double-ended spoon) of reagent 2 and shake it
until the powder has dissolved.
5. Add reagent 3 one drop at a time, counting the drops, and shake it after each drop until the colour changes
from pink via violet to blue. The number of drops needed multiplied by 20 gives the calcium content in mg/l.
Example: 12 drops of reagent 3 = 240 mg/l.
Our tip for environmentally-friendly aquariums owners:
All reagents for JBL test sets are available from your retailer as reasonably-priced rell packs!
Warning and safety notices:
CA reagent 1:
Danger
H 314 Causes severe skin burns and eye damage.
P101 If medical advice is needed, have product container or label at hand. P102 Keep
out of reach of children. P280 Wear protective gloves/protective clothing/eye protection/
face protection. P 305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several
minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P310
Immediately call a POISON CENTER or doctor/physician.
Hazard-determining component of labelling: Potassium hydroxide.
Warning and safety notices:
CA reagent 3:
Attention
H315 Causes skin irritation. H319 Causes serious eye irritation.
P102 Keep out of reach of children. P280 Wear protective gloves/protective clothing/eye
protection/face protection. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water
for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337 x P313 If eye irritation persists: Get medical advice/attention.
Test Set Mg + Ca
Special features:
The JBL Mg + Ca test set is an easy to use drop test to measure the magnesium and calcium content of
saltwater. As the magnesium content can only be measured by recording the sum of magnesium plus calcium,
the two tests have been combined in one pack. The magnesium content can be calculated by subtracting the
calcium content from the total value of Mg + Ca.
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