Originally Posted by Fishdreamz
I would guess feather dusters of some type. Very common on live rock and calcified old feather duster casings. As far as live rock turning white could be water parameters or lighting. If u know u have top notch lighting test water and wait it out.
Well the light we got is, in my opinion, a little dimmer that what it was out of the box. As it is a used light that a friend of mine had on his tank for who knows how long. But it has white led
lights, blue led
lights and 2 big white lights we turn on during the day. I am his "fish guy" as I have worked at a per store for 2 and a half years as their "fish guy" and surprised the owner with my knowledge so dramatically that he contracted me out to customers and friends of his houses to do maintenance on their fresh and saltwater aquariums. I haven't been back to his house in 2 days but since then he said he noticed the rock is getting a little white. And I know it it natural for new live rock, when adding it to an aquarium and getting adjusted, that some of it may die off in the cycling process. I'm just looking for further insight or advice because I know he should have bought a brand new light system from the start but it was only 100 bucks for the light and some live rock.
I don't know how old the live rock he gave us is but I feel like it could have played a roll in hurting the tank as well as how old the light is. But you can look at my pictures and see the little tunnels of white organism on the one live rock he gave us and the night we added it to the tank we noticed a red coral-esc type or red hairs emerging from the small white tunnel systems.
I haven't had a chance to get back to his house to do a water test in the past 2 days. But the amount of living organisms on the old rock that his friend gave us could have made a negative effect on the tank and since it is still going through its first water cycle that could also add to the negative effect he is speaking of.
I am strictly trying to, at this time, discover the name of the miniature white tunnel system type of organism living on the rock he gave us.