Hey everyone got some questions on substrate for my new 220 gallon tank. I was originally planning on buying natural red flint sand for my aquarium. I will be keepin freshwater rays and some cats. When I went to my LFS they told me not to buy sand because it would cut the innards of my rays if ingested, they also said it would ruin my canister filter. I aee so many people on here keep thier rays in sand and with canister filters and they seem fine. What would you guys do? Anyone have this experience?
Thanks,
Tyler
Thanks,
Tyler
