Way to go insane caterpillar stuff.
OK, so what I heard termed "caterpillar weed" or something like that...has gone crazy. I started off without about 5 little stalks that didn't do much for about 6 months. I had an algae bloom (phosphates got into the water...since using PhosGuard and the algae is not growing back) and these things took off. I've attached pictures, and I'm just wondering if I should be worried or if it's harmless. Thanks!
125 gallon saltwater: 55gal sump, 4 Blue-Green Chromis, Purple Tang, True Perc, Firefish, Royal Gramma, 5 Ricordea, Bubble Coral, 15 Pulsing Xenia, Green Star Polyps, Deresa clam, Green-Tip Torch Coral (about 11 "heads"!), Orange Montipora Cap, Purple M. Digitata, Green Slimer Acro. Yongei, 3 Orange M. Digitata, Pink&Green Acro. Millepora