Posting for my dad on here I tried looking this up but couldn't find exactly what it is.
His green Monti Cap has some large black spots developing underneath it, I don't think its black Monti bugs because it looks much larger than than. here is a picture, can anybody help?
Oh yeah his parameters have all been good besides phosphate being a little high, everything in the tank is growing really well including this Monti. just wondering if its any reason for concern.