Originally Posted by cdamouse
I just purchased a gravel vac. In about 10 min 10 gal
of water was sucked out of my 20 ga. OMG!
I only got 5"x5" clean. Is there a vac out there that pulls it out of the tank, filters it and puts it back. This is gonna kill my fish.
Depends on how big of a vac you bought, bigger isn't always better. I have one sized to get about 5g in 5-6 mins (I use buckets) for my 37g tall, but had to custom make one for my 8g.
As for cleaning, the idea is to remove water with excess ammomia, nitirtes and such, along with the detris. I do my vacuuming in sections and don't want to pull everything out at once as there's bacteria in the gravel that's good for the tank too. Planning out what part I want to clean up is pretty easy and I don't ever expect to get it all anyways.
I just bought a used tank setup that had an electric powered vac that catches detris in a fine filter and dumps the water back in the tank. I tried it once just to see, now it's in the garage sale pile waiting for our next one in May