I've found a few of these in different spots in my tank. Some in my cabombas, some in my Christmas moss, and some floating on the surface. Sorry the pic is not too great
Nothing new in the tank for about 8 months now. I vacuumed it out and haven't seen any more. I was just curious to see if someone might have seen this before. Co2 and easy green is the only thing I put in. Besides the prime conditioner when I do my weekly water change.
Saw this in my tank this morning. It wasn't attached to anything and when I tried to pick it up with tongs it just fell apart. Very delicate. I ended up vacuuming it out. All of my water parameters are good. I did a water change last night and it was there when I woke up.
Every setup is different. My 10 gallon took 4 weeks to cycle. My 65 took a week but I had cycled filter media. If you do put livestock before it cycles you have to keep constant checks on the water parameters. And be prepared to do plenty of water changes to keep the fish safe.