JBL PROAQUATEST NO3 Nitrat

Marsoni

M251S

$23.99

Get it in 3 business days with 1 day shipping. Friday, May 29

JBL PROAQUATEST NO3 NitratSchnelltest zur Bestimmung des Nitratgehalts in S Meerwasser Aquarien & Teichen Bestimmung des Nitratwertes fr optimalen Pflanzenwuchs oder mglicher Algenursache im S und Meerwasser Labor Komparatorsystem zum Ausgleich von Wassereigenfrbung: Glaskvetten mit Probenwasser fllen, Reagenzien in eine Kvette zugeben, Kvetten in Halter platzieren, Werte auf Farbkarte ablesen Anwendung: Bei Neueinrichtung Swasser: 1x wchentlich. Bei Neueinrichtung Meerwasser:

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My 6 year old has autism and his hyper fixation is anything space related and comparing sizes of everything in it from molecules to galaxies. So needless to say finding this book hit every one of his interests and he’s hooked. Not only is the book cute and clever, the hidden secret at the end of the book sent him into a fit of giggles while searching for everything with his black light pen. This is the only book he constantly goes back to.

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Reviewed in the United States on October 12, 2024

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Miamem

Cuba, US

★★★★★ 5

Loved this book!

Format: Hardcover

I have a grandson (5yrs old) who loves "There was an old lady who swallowed a fly" books, and is obsessed with black holes as well. He asked santa for a black hole for Christmas and his mom told me, "good luck with that", so when I found this, it was perfect! He absolutely loved it and it's a cute book to read.

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Reviewed in the United States on February 5, 2025

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Amazon Customer

Birmingham, US

★★★★★ 5

Love it!

Format: Paperback

My 6 year old LOVES this book! I read it to him every night that I know it by heart. He’s extremely fascinated by black holes, and It has really got him curious about cells and atoms.

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Reviewed in the United States on March 13, 2026

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Delayed Gratification

Houston, US

★★★★★ 4

2nd book if you have black light

Format: Hardcover

The book is ok, with the same plot as "there was an old lady who swallowed a fly" but there is a second book that goes back to front if you have a blacklight. Some of the pages were not printed well with the invisible ink but I really liked that second book better, as it explains the terminology like quarks and atoms. It is a fun book but having a black light is a must.

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Reviewed in the United States on January 19, 2024

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Amanda Embry

New York, US

★★★★★ 5

Fun book to read!

Format: Paperback

Such a fun book for my boys! They love it!

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Reviewed in the United States on November 14, 2025