So my Chaeto pretty much died in my sump again and it's got a lot of hair algae in it but not so much in DT. Which leads me to an obvious question, can I just grow hair algae in my sump and recruit Emerald Crab(s) to trim it as a nutrient export method? 4 tries with Chaeto and it never thrived, I had two kessil A 80s over about a 10 gallon compartment and added chaeto grow, phosphates and nitrates were available to it it just always got out competed by other types of algae.