Where to find good GH test kit?

[o2bubble]

Just realised that my sera GH test kit is faulty, always yellow.. Anyone has experience and know if those at polyart and clementi 328 is ok to buy?

[BFG]

Check the expiry date on the box before buying.

[Cacatuoides]

I just bought mine last month, results were aright

[fla04gbf]

I have bought a few test kits myself and none of them seems to give me very reliable results. I think my tap water is very soft.... the color seems to change after the first drop.... it this possible in Singapore or have I done something wrong? Any comments. I am using the API GH/KH kit

[christopher.wtc]

JBL GH test kits are nice. They change from red to green. Red and green are very contrasting colors thus easy to determine test result. API has a color change from yellow to green. In my opinion, not a very contrasting color. I found it harder to determine test result. API defiantly a no no for people who are color blind .

[o2bubble]

i bought a working tetratest gh kit from c328. One trick is to buy those priced slightly higher packs for same brand. Those selling at discount probably going to expire.