thanks, you were incredibly helpful, i actually just sign up today, so i am still getting use to the site, but you helped out alot, i think i will get tds meter now :)
i know this i rather a noob question i am asking but i have a 90 gallon aquarium with very heavy filtration, so heavy in fact that is cleans my entire aquarium every 1.20 minutes, its a sump with a flow rate of 4000 gph, i test it weekly and my water conditions are always perfect, is it alright...