Join Date: Jul 2003
Location: Charlotte, NC, USA.
I've added more flourite to my flourite tank. I have done it two ways - one was using a plastic stadium cup, filled up w/ the substrate, submerged and then turned over to let the gravel run out where I wanted it. This tended to be a little messy with washed flourite (I could have washed it better).
The other way, which was more effective at staying clean was using a "beer bong" set-up (funnel with hard PVC tubing, so it's not exactly a beer bong), with the funnel at the water level, filling up a 1" or 3/4" PVC pipe that was pressed down against the substrate where I wanted it, but against the substrate to prevent it from flowing out yet. The tube and funnel were filled up and when I wanted to add it to the tank, I pulled up the PVC a little bit to let the flourite flow out the bottom. I could move the PVC to direct the flow or push back down to stop it. This was much cleaner, though I probably washed the flourite better.
I've added 2 full bags to a fully planted 75 - though I would still suggest a nice water change afterwards. Flourite isn't the cleanest substrate around - but neither is where the plants came from originally!