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The colour charts are intended to be used with the comparator block. In addition, when the comparator block is used with the blank water sample, this compensates the inherent water colour. Therefore, if the comparator block is not used, there will most likely be deviations in the readings.
The reason is often an incorrect use of the test. It is important to shake the test vigorously for precisely one minute. All the other important steps can be read in the instructions.
The liquids of one reagent are empty, the powder is still half-filled. Can't you just buy individual bottles? No, because the JBL refill packs always contain all the reagents as a set and need to be replaced together. There is a reason for this. The reagents age when they are first opened and should therefore be disposed of completely as soon as one of the reagent bottles is empty. The unequal consumption is due to the fact that some test procedures require an individual number of drops, depending on the existing value in the aquarium water. So one needs more, the other less. The liquids can be emptied completely. In the case of powder, you cannot use the quantity you need if there is only a residual amount left. Thus the quantity is on the generous side, so that the range is ensured even with low liquid consumption.
With the JBL PROAQUATEST drop tests you have a laboratory comparator system which compensates the inherent colouration of the water and at the same time enables non-chemists to carry out an accurate and safe water analysis. To ensure that water testing monitors the life of your fish and provides the greatest possible safety, you will find an evaluation adaptable to three different applications. Above the different coloured measuring points are numbers, three symbols and a colour band for each. The symbols stand for the following applications: Fish = freshwater Koi = garden pond Starfish = marine water The colour band tells you the meaning of the value determined in green (everything OK), yellow (attention) and red (need for action). In addition you will find numbers that reflect the value in mg/l for the respective colour field. The first two (freshwater and pond) colour bands belong to the upper number row. Marine water belongs to the lower number row. Why do the values differ? Due to the high salt concentration in marine water, the colouring of the reaction is not as intense as in freshwater (which also includes pond). Consequently, the value for the same colouration is greater than in freshwater Why do the recommendations differ? Every habitat reacts differently to certain nutrient concentrations. In the garden pond, for example, constantly changing temperatures and light intensity can jeopardise the value more than in freshwater, where, unlike in the pond, these factors are constant and necessary additives are supplied. That’s why the recommendations are green for one area of application, yet yellow for the other.
A reading of > 6 mg/l with the silicate test means that there are more than 6 mg/l of silicate in the water. It is not possible to check how many more silicates are present. There may be 10, 50 or even more mg/l of silicates. There are more than 40 mg/l in tap waters in many regions today. The respective water supplier can provide more detailed information or you can dilute the water to be measured with silicate-free water e.g. water that has been distilled twice prior to measuring. In the event that osmosis water is supposed to be used, its silicate content should also be measured. With 40 mg/l of silicates in the starting water JBL Osmose 120 is able to achieve a permeate with 0.4 – 1.2 mg/l of silicate. Therefore, with silicate values this high, the lowering effect of JBL SilikatEx can only be checked by diluting the water before measuring it. 500 g JBL SilikatEx binds 5000 mg silicate out of the water. 400 g JBL SilikatEx Rapid binds approx. 12000 mg silicate out of the water. Sample calculation: 100 l tank with 50 mg/l of silicate in the starting water: 100 l x 50 mg/l = 5,000 mg of silicate.
Have you lost your record sheets, used them all up, or need them in another language? In the appendix of this FAQ you will find PDF files for printing them out in German, English and French.
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