White fuzzy algae growing in my rocks

In another thread we came to the conclusion that I am still at the tail end of my cycle. My nitrates are in the "okay" range on test strip but no where near the ideal area.

Every other aspct of my tank is perfect. No ammonia or nitrites. Perfect salenity, temperature etc.

Anyways, my question is what kind of algae is this and can it become a large problem?

I also have these little balls of what closely resembles a spiders baby pouch. Are these snail nests?

 

Do you have a picture? Normally, "fuzzy" usually equates to fungus or bacterial outbreak, not really algae.
If they are round and have an open part like a tube, it might be a pineapple sponge. It's hard to say without a positive picture though.

 

I have something that looks like a very fine fuzz on the underside of some of my base rocks... never figured out what it is.

The "spider eggs" are most likely pineapple sponges. If they have very fine translucent inverted cones sticking out of the top that's what they are.

 

Ya thanks.

They are indeed sponges. I have quite a few sponges evidently.