Reagent refill for iron Fe test

Regular price 1,300.00 RSD
Regular price Sale price 1,300.00 RSD
433.33 RSD × 3 with no fees

This dropper bottle is the reagent for the iron test, giving approximately 50 measurements. It colours only the iron remaining in solution, the iron your plants can actually take up.

The reading ranges from 0.02 to 1.5 mg/L across nine steps. The two test tubes, the syringe, the comparator block, and the colour chart from your test kit remain in use.

Ref. J2411700·Reagent refill
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The summary

The reagent bottle alone, approximately 50 measurements, from 0.02 to 1.5 mg/L of dissolved iron.

This dropper bottle refills your iron drop test for about 50 measurements of dissolved iron, from 0.02 to 1.5 mg/L, using the comparator block and colour chart from the kit. Aim for 0.1 to 0.2 mg/L in a planted aquarium, and about 2 mg/L in aquaponics. Unopened, the reagent keeps for 2 years, and it never goes into the fish water.

Water can have received a lot of iron and yet contain almost none in a form plants can use, because iron not protected by a chelate precipitates. This dropper bottle is the reagent alone for the drop-based iron test, and it only colours the portion that has stayed in solution, the part your roots can actually take up, for around 50 measurements.

🌿 The iron actually available

Iron is consumed continuously and stays stable in the water for only a limited time, even when combined with a chelate. In a planted aquarium, a level of 0.1 to 0.2 mg/L is already enough for good growth, with a heavily planted tank able to go up to 0.6 mg/L, whereas in seawater you stay below 0.05 mg/L. The vegetable crops of an aquaponic system are more demanding, and the FAO guide on aquaponics aims for around 2 mg/L: to read a value above 1.5 mg/L, the top of the colour chart, you dilute the sample in demineralised water and multiply the reading by the dilution factor. As tap water provides almost none, your measurement tells you when to top up again, and a value that stays low just after a top-up points to a chelate unsuited to your pH rather than an insufficient dose.

Nine steps

The colour chart runs from 0.02 to 1.5 mg/L, and its steps get closer together at the bottom of the scale, where the decision to add something is made.

10 minutes

5 drops in only one of the two 5 ml test tubes, then 10 minutes' standing time before reading in the block.

Rinse the test tubes after an ammonium test

Traces of the ammonium reagent left in a test tube cause the iron reading to come out higher than it really is. Rinse both test tubes several times with the water to be tested before you start, and if possible keep them for this test alone, especially if you are measuring ammonium on the same day.

🍃 Yellow buds and chelates

In aquaponics, fish feed covers the iron requirement of the crops poorly, so the supply almost always comes from a chelate chosen according to the pH: DTPA suits water close to neutral, EDDHA suits hard water. Deficiency is first recognisable on the buds and young leaves, which take on a yellowish, glassy tint. The guide to iron deficiency in aquaponics helps you tell it apart from a lack of magnesium, which the magnesium test settles in a single reading.

The DTPA chelate for water close to neutral

Choose DTPA 11% chelated iron with this refill if your pH stays close to neutral, since this chelate keeps the iron available to plants up to pH 7.5 without colouring the water. Measure just before the addition, then 24 to 48 hours afterwards, and the difference between the two values tells you the dose that suits your setup.

💧 A dropper bottle

The reagent is classified Warning, with hazard statements H302, H317 and H319: harmful if swallowed, it may cause an allergic skin reaction and serious eye irritation. Wear gloves if your skin is sensitive and store the bottle tightly closed, in a dry place, at room temperature, in its original packaging. At the recommended rhythm, one measurement after setting up and then one a week, the 50 measurements cover about a year of monitoring, and you add a measurement whenever green algae appear or your plants' growth slows.

The unopened bottle keeps for 2 years; the expiry date and batch number are printed on the underside of the packaging, and this date no longer applies once the bottle has been opened. With the comparator block and colour chart from your iron drop test, all you need to do is order the refill as you approach the fiftieth measurement or this date. The coloured sample goes down the sink, never into the fish's water.

Technical specifications

What the refill contains

Contents
1 dropper bottleFe reagent, to be held vertically, with a dry nozzle and no bubbles
Readings
Around 505 drops per measurement, for the same volume of reagent as in the original kit
Manufacturer's reference
JBL 2411700, PROAQUATEST rangeNot to be confused with 2411600, which is the complete kit
Matching test
Iron test FeRef. 2411600, with its two test tubes, its block and its nine-field colour chart

Reading dissolved iron

Colour chart range
0.02 to 1.5 mg/LNine steps: 0.02, 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, 1.0 and 1.5
Target values
0.1 to 0.2 mg/L in a planted aquariumOnly up to 0.05 mg/L in seawater. A heavily planted tank tolerates up to 0.6 mg/L, and an aquaponic crop aims for around 2 mg/L

Hazard labelling

Signal word
WarningSingle bottle, to be held upright
Pictograms
Exclamation mark, GHS07
Hazard statements
H302, H317, H319Harmful if swallowed, skin allergy, serious eye irritation
Precautionary statements
P101, P102, P303+P361+P353, P305+P351+P338, P501
Precautions
Gloves for sensitive skin, keep out of reachAmmonium mercaptoacetate declared
Storage
2 years, bottle unopenedExpiry date and batch number printed under the packaging, valid while the bottle is sealed

To allow for in addition

Glassware and syringe
Those of the iron testYou need two: one receives the reagent, the other stays as untreated water and serves as a control
Comparator block and colour chart
Those from the iron testThe block slides along the colour chart until the two colours match

6 further specifications are available in the detailed view.

In the box

  • 1 dropper bottle of Fe reagent

Manufacturer's values (Fe test instructions, safety data sheet and FAQ). The range and the nine steps are those of the colour chart supplied with the test. Dilution: manufacturer's FAQ.

Manufacturer and product safety

Manufacturer
JBL GmbH & Co. KG
Postal address
Dieselstraße 3, 67141 Neuhofen, Allemagne
Website
www.jbl.de

Information provided under Regulation (EU) 2023/988 on general product safety.

The bottle alone, or the metal case?

A single reagent on both sides, and the same number of measurements. What changes is the glassware and the reading optics, which last for years.

Iron is read at the bottom of the scale The first steps on the colour chart are 0.02 then 0.05 mg/L. The refill therefore assumes a colour chart that is still clearly contrasted and the block that holds the two test tubes.

Reagent bottles (bottles)Possible tests (tests)Glass test tubes with screw caps5 ml graduated syringeGrey comparator blockNine-step colour chartPrice
Recommended
Reagent refill for iron Fe testYour choice		1 bottles50 testsNoNoNoNo1,300.00 RSD
Iron (Fe) water test, drop formatYour choice1 bottles50 testsYesYesYesYes2,000.00 RSD
Reagent refill for iron Fe testRecommended
What runs out
Reagent bottles (bottles)1 bottles
Possible tests (tests)50 tests
What keeps
Glass test tubes with screw capsNo
5 ml graduated syringeNo
Grey comparator blockNo
Nine-step colour chartNo
Budget
Iron (Fe) water test, drop format
What runs out
Reagent bottles (bottles)1 bottles
Possible tests (tests)50 tests
What keeps
Glass test tubes with screw capsYes
5 ml graduated syringeYes
Grey comparator blockYes
Nine-step colour chartYes
Budget

Contents of the two boxes based on the instructions and the data sheet of the iron test.

Estimate your
delivery time

Parcel weighing 0.08 kg, dispatched within 48 h by Colissimo or Chronopost to your home, as you choose during checkout. The bottle is sent in its original packaging. The exact shipping cost is shown in your basket. Once unsealed, this product cannot be returned under the right of withdrawal (article L221-28, 5° of the French Consumer Code), for reasons of hygiene and health protection.

Frequently asked questions

6 questions

6 key questions

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