GHA will grow anywhere corals grow, the hobby has it wrong that only tank problems cause gha. its equally adapted like corals. I do work threads fixing tanks of gha, it shows up in all current zones, under all nutrient conditions, under all lighting threads, and in tanks that already have great params before the outbreak, as well as bad param tanks.
GHA currently wrecks old tanks, new tanks, and middle age tanks. All source water posts on help threads, including users of GFO and biopellets and algal turf scrubber users, even those post for help in controlling GHA>
if you want your tank fixed of gha, we can do it right here. The simple fact is, most want it in their tank. they feel obligated to farm it. do you
we can kill it and make it gone. perhaps some sort of cuc after the cleaning might keep it at bay, but waiting for an animal to make the tank algae free is actually the cause. you have a way to make it algae free, right now.
