testing water

Used. Everything is working fine. All probes are stored in the aquarium.

Leaving hobby for good this time. Hanna Phosphate ULR, Hanna ALK DKH , Hanna Nitrate , Magnetic stirrer for the testers , tray excellent kit SOLD SOLD SOLD

My tank is about a week old and the water test stated it has an alkalinity of 7. Is this alkalinity okay for a softie reef? Will this number rise over time on its own or will I have to add something to increase it?

Hi guys, hope you’re all well. I bought a hanna check nitrate low range and just did my first test on it. I didn’t know about the high range lol. I used the dilution method to get a higher range. When I added the powder the vial was completely full to the brim! Is this correct or does it...

Professional Lab Test Kit - Tropic Marin brand new . Tropic Marin Professional Lab is a complete test kit for monitoring water values in marine aquariums. It contains highly precise tests for phosphate, nitrite, nitrate, calcium, magnesium, and carbonate hardness. Reference solutions for...

Came with a system i bought and already have 1. $450 plus shipping will need new reagent. Comes w the ac dc adapter and usb cable.

I'm sorry to ask this if it's stupid ☹️ but I really need help in how to use these...I tried and by the end I'm so frustrated because I don't understand and also I have a disability with numbers so this makes it harder ☹️