Hey, need help trying to figure out what this is. The growth seeming exploded overnight. I had not seen anything like this the day before. Let me know if you need any more details. They seem to red and spikey. Are they vermetid snails?
I just notice some on mine too-if it’s green or red prickles then it’s algae. I just take them out of the tank, scrub them with a hard toothbrush, rinse off, then plop back in the tank