looking for advice
I'm looking to start a discus/catfish/dwarf cichlid tank. Its going to be a 75 gallon tank and I was wondering what kind of substrate I should use, I like the idea of darker gravel. I also have seen sand substrate with black rocks and it looks sharp. The plants I had in mind are amazon swords and dwarf hairgrass but I don't think it would be good with the sand, I'm open to all suggestions so please let me know what you think.