hello, how much water can the large one handle? i have those long suckers and they fill up in about 4 or 5 days.
thanks,
john
Hi John
it depends on many factors: tank size, pump gph, current water quality, overfeeding, etc.
If your water is really dirty, it may fill up relatively quick, but after regular use, you may have to rotate it less often, as clear water develops.
you should be rotating them at least once a week to keep nitrate down anyways.
to give you a more concrete example, i use the smaller one on my 30g and it takes about a week for it to fill completely. i rotate them once/week as suggested anyways, so it is perfect.