对于建立在繁殖盐水动物需求的爱好中，礁石和海洋水族馆的实际是什么是盐度，以及如何准确测量它。我们水族馆中化学和矿物质失衡的许多问题可以归因于水中没有足够的盐。低pH值，低钙和低碱度 - 所有这些东西通常都可以归因于我们测量水族馆海水盐度的几点。
水族馆的爱好得到了little近年来，随着许多更好，更便宜的折射率的扩散，就像任何好的工具一样，如果您不知道如何使用它，实际上可能会造成比好处更多的弊端。多年来，礁一直依赖saltwater折射仪，为20ºC/68ºF的氯化钠溶液（盐水）设计，并使用纯淡水在0 PPT设定点上校准。
Finally after decades of testing salinity in the dark we have a commercially made product from Two Little Fishes called准确性它被设计为海水参考和校准解决方案。无论您依靠哪种盐度测试设备accurately您正在测量盐度，并且它足以校准数十次校准折射率。
“测试”旨在校准的解决方案testerswe mixed up a batch of seawater of our own to the same 35ppt per thousand indicated by AccuraSea and first measured this solution using an ultra preciseDupla Marin的手工制作比重计。自制的海水和精确溶液都将其带到25C/77F，我们并不感到惊讶地看到使用密度和折射率达成共识的盐度读数。
We also tested the accuracy of using pure freshwater to calibrate three different hydrometers at the zero setpoint of 0ppt. It can be hard for the eye to discern between 1 and 2 points of salinity with even the best optics but thankfully the D-D, Red Sea and AquaMedic refractometers are among the easiest refractometers to look through.
This modern crop of marine aquarium refractometers are some of the best and most recently designed for aquarium use. When these seawater measurement tools are calibrated using pure freshwater, they deviate from 35ppt by about 1.5 to 3ppt – this means that even the best refractometers when calibrated at 0ppt can be off by more than 8% of the actual salinity, which means it’s 8% off in all of the constituents that make up salinity including calcium, carbonates, magnesium and everything else.
Now imagine you’re using a cheap, old or flawed refractometer and calibrating for 0ppt – if you’re not being very careful about your readings, sampling and measurements your salinity could be off by over 10%! That is why there is no excusenot要在您所瞄准的实际盐度和所有应该为35ppt的礁石上校准盐度测量工具，与天然海水相同。
We presume that when it is released, a 250ml bottle of AccuraSea should be within the budget of most reefers, especially considering how much headache it can save when balancing out other seawater parameters. Since there really is no other product like it widely available to reference our salinity testers, consider AccuraSea a mandatory addition to the reefers’ toolbox.
