eowyn
New Member
I have a 16 gal tank with 2 albino cories and 5 glowlight tetras. The substrate is gravel...some appears smooth, other pieces not. I'm relatively new to fish keeping and i've been reading that gravel can damage the cories' barbells. So far the two cories are doing very well. How difficult would it be to change the substrate to sand? Should I even bother if they're ok now? Is it easier to clean than gravel? Thanks.