Thank you all for your input. Much appreciated.
Now that I know buffering capacity isn't a real issue, my only concern is grain size. I have read larger grain size (above 3mm) isn't ideal because it provides surface less area for beneficial bacteria, I think? Or something along those lines. Not sure if it makes a difference but I was planning on a shallow sandbed of ~1-1.5 inches, and I'd be vacuuming/stirring portions of it every 1-2 weeks during water change (I do this on my current tank, and the sandbed always looks dirty but that's a different story/perhaps unrelated issue).
Certain invertebrates prefer smaller grain size. Besides gobies and jawfish, I'm unsure which others do. I don't want grain size to hold me back if there are sand sifters I may want in the future. I'm assuming grain size won't be an issue for Nassarius or Ceriths snails and the only fish I'm considering is an Angler/Frogfish.
Sorry for many questions and maybe unnecessary concerns... I just really don't want to regret my choice of substrate later.
Now that I know buffering capacity isn't a real issue, my only concern is grain size. I have read larger grain size (above 3mm) isn't ideal because it provides surface less area for beneficial bacteria, I think? Or something along those lines. Not sure if it makes a difference but I was planning on a shallow sandbed of ~1-1.5 inches, and I'd be vacuuming/stirring portions of it every 1-2 weeks during water change (I do this on my current tank, and the sandbed always looks dirty but that's a different story/perhaps unrelated issue).
Certain invertebrates prefer smaller grain size. Besides gobies and jawfish, I'm unsure which others do. I don't want grain size to hold me back if there are sand sifters I may want in the future. I'm assuming grain size won't be an issue for Nassarius or Ceriths snails and the only fish I'm considering is an Angler/Frogfish.
Sorry for many questions and maybe unnecessary concerns... I just really don't want to regret my choice of substrate later.



