here is my lazy question. I have found in my smaller tanks (55 and 20L's) that its easy to add wet sand to a tank with water in it without clouding, just don't dump it in, I scoop the wet sand and let it out on the bottom. If I thoroughly gravel vac my existing large natural river stone gravel, can I add sand right over it? or should I definitely remove the gravel first?
The color of fishmamas sand and the prices you guys are saying for large bags has me wanting to go sand in my 125 and 180.
I'm thinking the main problem would be trapping bacteria/particles under sand creating poison pockets, but I'm not sure if thats how it works.