Something about my frag system is very accommodating to these invasive little buggers. My display has none, while every plug in my frag is covered in them. They often seem to irritate the base of some acropora and inhibit their ability to encrust the plug. As I move frags over to my display, they disappear over time.
So first question: Are they hydroids or something else? The tube is soft, not hard.
Second, any tips on managing them? My frag system runs high nutrient in/out -- mostly fish food/waste -- otherwise I get a dino bloom going.
Grateful for your suggestions.
So first question: Are they hydroids or something else? The tube is soft, not hard.
Second, any tips on managing them? My frag system runs high nutrient in/out -- mostly fish food/waste -- otherwise I get a dino bloom going.
Grateful for your suggestions.