Algae tufts are self wicking nutrient traps
Particles are degrading on site in the allowed mass, feeding independent of water tests due to localized uptake
Manual removal reduces community support
We can take any algae coated rock example here, strike up a cell phone vid, move that rock to center tank water and twist around. A clouding comes off always. That’s what we’re removing with the manual rasping
The mop and the stuff it wicked up
Yes agreed detritus isn’t bad in all systems, Randy HF from the chem forum had a notable layer in his sump and Paul isn’t concerned about it in his tanks
But
In any invasion scenario nothing beats manually killing an invader with a cheat approach + cleaning out the detritus feed, it makes strong results in short time. If you aren’t invaded, some detritus sitting there piled up might not hurt
But if we want an invasion to go away, and be able to focus our N and P stores more in the food we feed vs the diaper, we clean that waste and it works well for all tanks