They’ve all been in there around 2 months, it seems to be the new leaves are effected moreAre these newly added plants? A lot of the unhealthy leaves look like they're in the emerged form (grown above water) and are of little use to the plant. Once they're submerged in water the leaf form will change and adapt to its new conditions, which you can see in some of the new growth.
Basically a lot of the old leaves are dying and attracting various types of algae.
Like @Konsa suggests, more details about the set up would be helpful 😀
Ok thanks I’ll try that.Tnc complete usually gets the thumbs up. Just follow the dosing instructions on the bottle to start with.
The diatoms might wipe off, try gently rubbing the leaf between your fingers, if it does come off then do a water change once you've finished cleaning the leaves.
How do you get rid of diatoms... Time unfortunately, the tank needs to settle and mature a bit. Do you have any floating plants? Adding some of those might help speed up the process. How do you feel about snails? Some varieties will eat the diatoms.
I’ve had black beard algae in a previous tank, this seems different, it’s not fuzzy at all? Are you sure it’s that? It’s not on my Anubias. I got rid of it last time by spot dosing Seachem excel. Nope I didn’t treat the plants before putting them in. Can’t get a Siamese algae eater because of my rainbow shark.Hi @Lewissss
I also reckon it's BBA (Audouinella). Anubias, in my experience, is notorious for developing BBA on the edges of its leaves. My guess is that the plant leaks nutrients (from the leaf edges) into the water column where the BBA spores are lurking. Chances are that the BBA was introduced into your tank on the plant itself. Did you treat the plants with anything before adding them to your tank?
Some people have had success with the true* Siamese Algae Eater fish but my experience is that these fish rapidly tire of BBA as soon as they are introduced to other fish foods.
Unfortunately, I know of no magic cure for BBA but perhaps others can help you. I seem to recall that @GHNelson may have used an Easy-Life product with some success.
* Crossocheilus Siamensis (if I remember rightly)
JPC
Hi @LewissssYep youre right it’s a Java Fern and Anubias
Yeah that’s not the anubias, it’s an Lagenandra meeboldiiHi @Lewissss
I'm confused. I can see what looks like BBA growing on some of the disintegrating pale green leaves on the RHS of the bottom photo.
To which photo does your above comment refer?
JPC