I'm using test strips..i know they are not accurate as the liquid testing kit is..my ammonia is reading now at 0.5 which is stress, nitrite is showing up clear which is ideal, nitrate are reading at between 40-80 which is okay and un safe and ph is reading at 7.8..so i'm prpbably due for a water change now... my test strips are only a few months old...thinking about getting liquid test here soon..i've had my water tested at LFS before and they said my water is fine, but have not had it tested at one recently..going to try to do that when my work schedule is not so busy...this is what I have in my tank..regular hanging off the back filter that is for a 29 gallon..seaclone 100 protein skimmer..10 lbs of live rock (which I know i need more of) I have live sand, crush coral, and white sand for substrate which is about 1- 1 1/2 inch thick on the bottom..right now i dont have my heater in cause i was testing it to see if that was the problem..my heater is for the 29 gallon..I have a power head on one side..but didnt have that running since with skimmer there seems to be an extreme amount of water movement..that i thought it might stress the fish too much at once..