- Joined
- Jan 21, 2014
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I have a 20 gallon saltwater tank its been up for 3 months ago it's too late for drill and i want to have a small 15 gallon sump ...but i am worried about the overflox box that it lose the syphon as many people said is it safe? or not? my lfs said it's very safe and good ..so what do u think guys?

