What is the next test kit or kits I should have?

[oldfishman]

I currently have a JBJ 28 gallon tank. I have a refactor, TDS meter, and a API saltwater test kit. What should my next test kit or kits be and which brand. I currently have a pair of clowns and six different types of coral in my tank.

 

[LetItReef]

These are the one's I am using:

• Salifert- Alk, Ca & Nitrate
• Aquaforest- Mg
• Hanna checker- Phosphate

 

[Breadman03]

Here's my routine:
Every other day: Alkalinity with Salifert
Mondays: Nitrate with Red Sea Pro
Monthly: Calcium & Magnesium w/ Salifert. Phosphorus with Hanna ultra low Phosphorus checker.
Every so often: ICP test with Triton.

 

[MTBake]

I use Salifert for alk, ca, mg, and no3. Hanna ulr phosphorus checker, copper checker and alk checker are also in my cabinet. I also recommend a dependable and accurate thermometer as well. I've had some cheap ones off by as much as 7 degrees.

 

[Randy Holmes-Farley Verified Community Expert]

After ammonia during cycling, the most important kit is a good alk kit (say, Salifert, but there are others that are fine), and second, calcium.

Magnesium is far down the list of early needs.