Anyone got black sand?

I have had my axolotl in a bare bottom tank since I got him (last August.. he's probably close to a year old) but I'm upgrading to a bigger tank. I was just curious if anyone has black sand and how do you see the poo/dirt to clean it up? It's easy right now in a bare bottom. I always see the poo and any dirt and clean it/do water change 1-2 weeks but I feel like with black sand it's going to blend in :/ any tips?

I have had my axolotl in a bare bottom tank since I got him (last August.. he's probably close to a year old) but I'm upgrading to a bigger tank. I was just curious if anyone has black sand and how do you see the poo/dirt to clean it up? It's easy right now in a bare bottom. I always see the poo and any dirt and clean it/do water change 1-2 weeks but I feel like with black sand it's going to blend in :/ any tips?