Aquarium Calculator

So you start off with a freshwater tank and slowly work your way up to a brackish tank… but along the way, you don’t really … Read more

Now you’re standing next to your reef tank holding your refractometer and staring at a drop of water as it covers prism. The separation between … Read more

You go check your tank, look at it and question why your refractometer reading isn’t right. Maybe you’re wondering if your corals is swimming in … Read more

With just half-an-hour to go until next water change and no mixing bin in sight, you’re panicking. The water needs to be perfect, but how … Read more

After being away for the weekend or simply ignoring the water line for several days, I’m sure you’ve seen that abrupt spike appear when checking … Read more

Whether you have a big reef display or a small nano tank, all aquaria systems experiences salinity drift. Every time the water evaporates, it pulls … Read more

The quality of your tap water depend on general hardness (GH). If you keep planted tanks, this value help plants absorb nutrients well and helps … Read more

Water chemistry is basicly arithmetic wrapped up with a bit of biology. So when you measure the water and notice your alkalinity buffer (KH) has … Read more

The problem with having hard water while keeping sensitive species is this: you take a bucket and pour in tap water that looks clear but … Read more

Water hardness seems like an odd term until there’s an issue with your tank. Your prized neon tetra appears listless hanging out by bottom corner, … Read more