Hi everyone! new here! just set up a 10 gallon nano with a 5 gallon sump. got some live rock and there are some interesting things on there... got rid of some bristle worms but i noticed a white fish net like substance on the rock i purchased from a LFS. the tank has been running for about 2 weeks and i am starting to get diatoms here and there. if anyone can help me id this that would be great!
thank you!