You have a way to stop this invasion and re adjust the plant balance. How many gallons is this tank, the closer to nano the better. the pics of the sps on the wall up under the invasion are typically associated with larger setups, 60+?
the reason I ask this is its all about access. we have several full tank teardowns/algae cleanings already documented, skipping a cycle in resetup is the easy part. The hard part, accessing the sandbed (waste/feed site) and all the targets all at once is very hard for large tankers to do.
When we still did it anyway, to force a win by Thursday vs coax one by February, hopefully, we drained off all that topwater into rubbermaids and the keeper now had access to the entire system
rip clean or replace the whole bed.
power rinse out rocks, no more detritus and we pre-model all this before running it tankwide
put back the water, and as much brand new as you can stand to mix, have a sparkling tank by Thursday. we use a critical red algaecide at the right phase, easily another win. post fts