Cutting off algae infected leaves

[JackBlasto]

So when doing maintenance, trimming off old leaves covered in bba (I think I have the new growth stopped but pretty sure the existing bba isn't ever gonna leave) do I cut the leaf all the way at the stem or can I cut only the bba covered portion of the leaf? I guess I'm curious because I want to encourage new growth and I'm unsure if I don't remove the entire leaf if it will encourage new growth? Thanks for any hints

 

[wildroseofky]

Trim off the whole leaf. If you just trim part of the leaf it will more than likely die. I had to do that to several of my plants because of algae. Just cut it close to the stim. I have had new offshoots start from such trimming.

 

[aqua_chem]

That's been my experience as well. With many plants, if you cut/damage a leaf too severely, the entire thing will die back on its own. I would just trim it to the stalk and call it good. For plants like crypts or anubias that grow slow enough that you might not necessarily want to lose a leaf, you can also try to chemically treat it with H2O2/Excel spot treatment, although BBA can often times do a doozy on leaves such that trimming is the best option.