I've seen this show up from time to time. This pic is an anubia leaf. Tank is 50 gal with bottled co2 using misting. Drop checker with reference solution suggests co2 40 ppm +. Tank is well planted but not crowded. Fish load light with about 20 small fish mostly tetras. Light is currently mystery mix. I temporarily put in original lights that came with the fixture while I decide how I want to light tank. Par readings are 60-70 at substrate level. Dosing is EI by the book for a 50 gal.
I do not believe this bba. I've seen a lot of that stuff. Algae almost looks diatomaceous. I've seen this on some other plants in spot form. This is a bad case where leaf is almost totally black.
Whoops no pic showed up.
Ok one more time.
I do not believe this bba. I've seen a lot of that stuff. Algae almost looks diatomaceous. I've seen this on some other plants in spot form. This is a bad case where leaf is almost totally black.
Whoops no pic showed up.
Ok one more time.