No it's not stupid at all. There are a lot of people that use base rock(various types) due to the fact that LR
is soooo expensive especially if you have a large tank. The only concern I would have is making sure the rock is fully cured and will not change anything such as PH
. I would place some of the rock in a bucket of water for a few days and test the levesl to make sure it's ok.
There is no correct ratio of LR
to base rock, any LR
is better than non and it will eventually spread out to all the base rock. Of course if you have more LR
it will spread faster.
rock I will be making has to cure for 1-2 months so it will not throw off the chemistry of my main tank.