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- Wed Feb 28, 2018 5:41 am
- Forum: General Discussion
- Topic: Commonly used Acronyms & Abbreviations
- Replies: 35
- Views: 20195
Re: Commonly used Acronyms & Abbreviations
Please feel free to add to this list! FW - Fresh water BW - Brackish water SW - Salt water LFS - Local Fish Store NH3 - Ammonia NO2 - Nitrite NO3 - Nitrate SG - Specific Gravity O2 - Oxygen CO2 - Carbon Dioxide HOB - Hang on back filter UG - Undergravel filter RFUG - Reverse flow undergravel filter...