which would you recommend for testing low range No3 and Po4?
we currently use Nutrafin/Fluval and it’s accurate enough but it can’t test low ranges.
salifert is more cost effective as we’re a business but would Hanna be more worth it in the long run?
we currently use Nutrafin/Fluval and it’s accurate enough but it can’t test low ranges.
salifert is more cost effective as we’re a business but would Hanna be more worth it in the long run?