After many labourous hours of reasearch, (ok, it was fun!) ...
I have picked up only 100 lbs of pool filter sand (pfs)
I am not begiinning the next change. Currently all gravel and everything is still in tank. Going to take it out shortly. But not sure if BB will be affected if I switch it in one day?
Because its all to one side, I have bare bottom on the other. and my ray loves it so much more than the gravel. Anywhoo. Here I go!
I have picked up only 100 lbs of pool filter sand (pfs)
I am not begiinning the next change. Currently all gravel and everything is still in tank. Going to take it out shortly. But not sure if BB will be affected if I switch it in one day?
Because its all to one side, I have bare bottom on the other. and my ray loves it so much more than the gravel. Anywhoo. Here I go!

