I picked up a test kit from petsmart ...its called :Saltwater Master Liquid Test: It cost me $19.99 and checks, Amonia, ph
, nitrite and nitrate. You basically drop some drops in a glass tube, shake it up then compare colors with these color cards it comes with...
(side note: I was testing my ammonia and there were 2 bottles, one of the bottles says MAY CAUSE FATAL INJUIRES IF SWALLOWED, then says harmful to skin ((thinkin' its acid or chlorine or sumthin)) so i open up the cap and it must have been under pressure or something but it all leaked out...OUCH, there was no eye dropper topper on it...(((thats a lawsuit))) so it just poured out....took it back to petsmart and they exchanged it for a diff one, and this works fine.)
46G Bowfront tank, 46# WaltSmith Fiji LR
, 30# Sand, AquaClear 70 filter, Standard Heater, Penguin 1140 PowerHead. 2 spotted puffer fish, 2 Ocellaris Clown
4 Green Chromis, 1 Hermit Crab, 1 turbo snail, couple asst snails, 4 small hermit crabs