API REPLACEMENT TEST TUBES WITH CAPS For Any Aquarium Test Kit Including API Freshwater Master Test Kit 24-Count Box

Great quality and every fish owner must have because the one came with test kits break very fast. I love this product.

The glass is really clear (not cloudy like some other brands) and its great that the level line is marked off (makes measuring the amount for water tests super foolproof). I also bought some cheap plastic pipettes so that I disturb the tanks as little as possible, but more so because its really easy to fill up these tubes to the line with the precision of a pipette. The caps fit snugly and Im never worried about any leakage while shaking up the chemicals with the water during testing. To clean, I just run it through some warm water after Im finished with the testing and the tubes are as good as new again. Great product and I love testing my aquariums water quality with this more precise method.

of course these are great but I (or anyone I know) would ever need 24?! Should really make a smaller box. I only wanted a few extras since I broke one of my own. Also there was no bubble wrap around them. This box was thrown into a large amazon box. I have no idea how none of them managed to break.

I got these extra API Test Tubes because I have 3 tanks to do water tests. All 24 pieces of tubes are intact. Non are broken from the delivery. One downfall I noticed is one new tube I used lightly leaks from shacking the tube. That’s why I have extras! Overall, they are worth it!

I have the API Freshwater Master Test Kit, which comes with 4 test tubes. I do test for all five parameters on my potentially overstocked tanks before and after water changes. Having these extra test tubes makes it easier for me as I do not have to wash out my test tubes as I am conducting my testing on my tanks. Also, I have a before and after standard available to me for straight comparison. I tried using various vials and such (free stuff) to do my water tests, but the colour comparison with the API chart is best visible using API standardized test tubes. I would recommend that every aquarist/fishkeeper get themselves a set of these test tubes. Makes life a lot simpler.