carey
Aquarium Advice Addict
There is water displacement due to the rocks, just depends onhow much you got.
I take out water in 5g buckets so i know exactly how much to put back in. At least that was my system until I just got the 125g and it would be impratical to continue that way.
But yeah, for a smaller tank, if youre taking out 20g for a pwc just get a few buckets from home depot. I got painters buckets so it has the gallons measured on the sides.
Hope that helps
I take out water in 5g buckets so i know exactly how much to put back in. At least that was my system until I just got the 125g and it would be impratical to continue that way.
But yeah, for a smaller tank, if youre taking out 20g for a pwc just get a few buckets from home depot. I got painters buckets so it has the gallons measured on the sides.
Hope that helps