02-21-2008, 08:27 PM
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Originally Posted by herefishy
Just leave the fish in the tank and use a 3500# psi pressure washer. That should do the trick. Be careful though, you might blow the glass out.
ROFL. Just kidding. Changing your substrate would mean a bit of recycling of the tank. The majority of the bio-bed is located in the substrate. By changing the substrate, you will lose it.
I just put one of my smaller tanks, a 90g through its yearly deal. I drain as much water as possible while stirring and vacuuming the gravel. I refill the tank 1/2 way and stir the gravel some more while emptying the tank. I also clean the glass with an algae sponge. Wipe down and clean up all tubes, hoses, decorations and put it back together.
What do you do with the fish during this?