Originally Posted by SinCrisis
if you get 1 small goldfish and a massive amount of live plants and a really powerful filter with lots of bio filtering u might be able to get away with not vacuuming the gravel...
Goldfish don't really come in "small", at least not for long. Maybe a baby one in a 40 gallon or so you could get away with it for a short time. XP
If you're gonna get in there and do a water change it's not like vacuuming the gravel is going to really take any extra effort. Such strange advice.