Do I top off evaporated water in a reef tank with saltwater or freshwater?

Always top off evaporation with pure unsalted RO/DI freshwater (0 ppm TDS)! Only pure water evaporates while salt remains behind in the tank; topping off with saltwater will dangerously spike your salinity.

How much live rock do I need for an 80-liter (20-gallon) nano reef?

Aim for roughly 1 kg of porous live rock per 10 liters of tank volume (about 7–8 kg or 16–18 lbs for an 80-liter nano reef).

指南新手阅读约 13 分钟2026年10月28日

新手微缸海水（纳米珊瑚礁缸）开缸全攻略：活石造景、1.025盐度比重、造浪泵与除油膜蛋分选择

手把手教你搭建60–120升海水纳米珊瑚缸（小丑鱼/雷达/医生虾）：0 TDS纯水制备、1.025黄金盐度比重、10–15倍造浪循环与除油膜蛋分器配置。

Nano Reef Tank Setup Guide for Beginners: Live Rock, 1.025 Salinity, Wavemaker & Skimmer — aquarium guide — Wikimedia Commons / CC BY-SA

60至120升的微缸海水（纳米珊瑚礁缸）是饲养公子小丑鱼、红雷达与医生虾最理想的入门尺寸。与淡水缸不同，海缸过滤的核心在于多孔活石（每10升水配1公斤活石）、每小时10–15倍水体循环的造浪泵，以及能及时分离水面油膜和溶解蛋白质的蛋分除油膜过滤器。

1. 0 TDS纯水制备与pH/KH水质监测

严禁直接用自来水化海盐（硅酸盐会导致褐藻与红泥藻爆发），务必先用数字TDS笔确认RO纯水数值，并定期用试纸检测pH（8.1–8.4）与硝酸盐。

纯水/养虾必备$1 – $3

高精度数字TDS水质硬度/电导率检测笔

前往全球速卖通购买 →

Sponsored / Affiliate link

7合1快速试纸$3 – $5

7合1水族箱水质检测快速试纸

前往全球速卖通购买 →

Sponsored / Affiliate link

2. 360度磁吸造浪泵与除油膜蛋白分离器

安装360度磁吸静音造浪泵模拟自然礁岩海流，并配合纳米除油膜蛋白质分离过滤器保持水面清澈与高溶氧。

造浪泵循环流$7 – $18

360度磁吸静音鱼缸造浪泵珊瑚礁水流泵

前往全球速卖通购买 →

Sponsored / Affiliate link

除油膜蛋白分离器$18 – $27

微缸海水纳米除油膜蛋白质分离过滤器

前往全球速卖通购买 →

Sponsored / Affiliate link

常见问题

Do I top off evaporated water in a reef tank with saltwater or freshwater?: Always top off evaporation with pure unsalted RO/DI freshwater (0 ppm TDS)! Only pure water evaporates while salt remains behind in the tank; topping off with saltwater will dangerously spike your salinity.
How much live rock do I need for an 80-liter (20-gallon) nano reef?: Aim for roughly 1 kg of porous live rock per 10 liters of tank volume (about 7–8 kg or 16–18 lbs for an 80-liter nano reef).