Red Sea Reef Care Algae Control Test Kit - Nitrate & Phosphate - 100 tests

Simple to use, color wheel makes it easy to read results. Photos shows No3 reagent B& C as liquids I received both as powder reagents, not really a big deal but just pointing it out. Up-date, this info is for the NO3 reagents. "The NO3 reagents were changed due to legislative changes in some markets, which prevented the use of one of the chemicals. We had been aware of the need to develop a test kit which was going to comply with incoming regulations (I am not sure if they apply to the USA as this is not where I am based, but we obviously produce one kit for global use and the changes were required elsewhere). The new kit is very precise and as with all our kits the manual must be followed very closely, including the timings and when to shake or not shake reagents vigorously."

this is the second Red Sea test kit I received with broken vials.

Great test kit but first one I ordered was damaged and had to send it back for a replacement

Many say that this is complex to use, but I find it very simple. NO3 is 5 drops of liquid, 1 scoop of part B, and 1 scoop of part C. Wait 9 minutes and use the wheel for an accurate measurement. NO3 is as accurate as 0.25ppm. PO4 is just two part: 10 drops of liquid and 4 drops of another. Wait 15 minutes and use the wheel for an accurate measurement. PO4 is accurate up to 0.02ppm. Will purchase this product again.

Everything came in box nice and packaged. Amazon did their part in making sure item was secure in the box. All products in box dont expire till 07/20 so everything is legit will definitely recommend this product to anyone who needs to check their phosphates in their tank.Also nothing was leaking or broken as you can see in my picture. All seals were in tact of the bottles

This is my first experience with a Red Sea test kit, and I'm pleased. Trying to compare colors of test samples with the provided color code cards, is always challenging. Red Sea's color wheel comparator make it easier and instills greater confidence that I am deciphering the results correctly. The ability to do both high and low level testing is great, and the multi-test kit is a good value over buying these tests individually. It's a well thought out, premium product.

Like many other customers I received very old inventory that is about to expire, and the Phosphate A solution leaked all over everything. This reagent is labeled Danger, contains Sulfuric Acid, and it even dissolved parts of the instructions. The real puzzling part is when I performed the phosphate test with the remaining solution the results were zero when I know my current level, and confirmed my current level is around 0.100 ppm. This is really concerning as I dose phosphate, and I could of easily overdosed my reef based on this inaccurate reading if I didn't cross check the results. To be clear, this Red Sea kit is a very good, sensitive, and accurate test when the kit is fresh, and the reagents are not compromised. I use this kit all time time, and this purchase was to replace my phosphate reagents that are running out. With COVID and stuff, it's just not worth the trouble of returning it, so I will just suck it up and accept that I got ripped off. Please don't make the same mistake.

Purchased 2/23/19. Arrived with contents scattered around inside its’ plastic box. Nothing broken. The kit contains sulphuric and sulphanilic acid. Ethanol too. One, all, of these liquids leaked into the kit. The labels on the liquid reagents had their printing partially dissolved off. Everything was covered in fine residue droplets, as well as printing flakes. Your guess is as good as mine as to whether the kit was used, returned and then reshipped to me. Rather than bother with a return, I just spent quite a while cleaning things up so I can use this one. I like my other Red Sea test kits so I expect to like this one too. Looking at the other reviews, it seems hit or miss whether your kit will arrive OK or not. Good luck.