what types of test kits would u suggest?

[mark]

Another fan of Salifert, have them for Ca, Alk, NO3 and pH. Also have Elos for Ca and Mg and all easy.

I'm with Delphinus and can't stand trying to match a colour range but the Salifert seemed better for pH and NO3 than the Hagen I had. Still ended up getting a pH monitor.

[Bryan]

Salifert for the most part, but do NOT trust the accuracy of their alkalinity kit. Lots of complaints on RC about this.

[Aquattro]

Salifert for CA and alk, don't test anything else.

[andestang]

I use Salifert for everything, but I have considered trying the Elos Ca when time to buy another kit.