Hi I am having a nitrite problem, and was told i need testing kits to help monitor it with my water changes. I was told to get a liquid testing kit, but when I went to buy it the pet store said i don't need that and just get the 5 in 1 strips, now that i get home with them i googled them and people say use liquid insted as they are hard to read. Think i should just take back the 5 in 1 paper strips for a liquid nitrite tester, or are these strips good? I thought i would ask here first.








