power tabs

  1. DaveyC

    Product Review Duplarit laterite & Power Tabs - Vallisneria

    I'm getting good results from using these together within inert gravel. This is 6 weeks after setting the tank up. First, using a hammer, smash up the 30 Power Tabs in a plastic bag. Then take out the existing gravel leaving about an inch. Important to drain as much water out of the gravel...