Spotting a few of these attached to my rock. In one spot there is a cluster of 5 or 6. Pulled one out and it appears to be plant. The bubble is liquid filled and greenish.
the dreaded bubble algae Nooooooooo. Manual removal seems to be the best solution but do it carefully when they pop they release spores that just make things worse.
when u decide to remove them, go ahead and do a water change. manually remove them while you are siphoning water, siphon out the bubbles and anything they may excrete
thats hit or miss. ive seen some do it. ive seen others show no interest. ive also heard that only the females will. like with anything in this hobby everyone will tell you something different. for 5 bucks its worth a shot imo