Colombo test stirrer is now available including a magnesium test and calcium test. For only 29.95!
A handy tool to do your testing much faster. https://www.facebook.com
In stock in the store or simply via the website.
https://oaquaria.nl/products/colombo-test-stirrer-colombo-calcium-en-magnesium-test-actie?_pos=1&_sid=bbd2faee6&_ss=r&fbclid=IwAR2c0e8eOyjXI80TYF8KNEOrc-ksJhy-s3sDPxcJ-QANM05PYt91MnYfQis