Does anyone have any experience with these. Saw a YouTube video today from a guy who has successfully used them, and they look quite effective.
Trigger Systems - Sumps Detailed
Video: [ame=http://www.youtube.com/watch?v=XgGamcu5C7g&feature=relmfu]How To Setup A Sump Refugium - YouTube[/ame]
Trigger Systems - Sumps Detailed
Video: [ame=http://www.youtube.com/watch?v=XgGamcu5C7g&feature=relmfu]How To Setup A Sump Refugium - YouTube[/ame]