marine master

For anyone who has the HI97115. What have you found to be helpful when using it? Here are a couple mods I have made; 1) Mark caps, alignment arrow is annoyingly hard to find early in the morning when I do my testing. I also mark one with a C to indicate my clean sample that I use to get the...

I can’t help it. I’m a sucker for new and better. Anybody else out there starting up a tank with a Phos-Start? I have been using it for a couple weeks now on a 20 gallon nano. The tank had already been going for about two months when I started using P-S. Phosphates are starting to come up I...