Received some old rock from Friend, still good?

Ryushei · Feb 12, 2017

So my friend had some old rock from his previous reef tanks in storage and he let me have some. I have been curing these in high salinity water for 24 hours now with a heater. There are some stuff on the rock and was asking if any of these still good to use if I keep curing. Any tips? I was thinking about using bleach to get rid of the algae etc.

On the 7th image, there are some grey ish blobs that are squishy and can be popped. Was asking if you and identify what these are because I am really scared before I add these to my tank.

Bdog4u2 · Feb 13, 2017

Just keep what your doing and change the water weekly til it stays clear. make sure you have good flow and test the water for phosphates before adding to tank also scrub what you can off the rocks.
I wouldn't use bleach myself and remember these rocks don't come from a sterile environment to begin with.

Ryushei · Feb 13, 2017

Bdog4u2 said:
Just keep what your doing and change the water weekly til it stays clear. make sure you have good flow and test the water for phosphates before adding to tank also scrub what you can off the rocks.
I wouldn't use bleach myself and remember these rocks don't come from a sterile environment to begin with.

Yeah Im going to need a pump but what about those vines and the grey gooey stuff?

cbutkos · Feb 13, 2017

The tubes are a type of worm that lives in that hard tube they make for themselves, harmless. The grey gooey stuff I'm not sure could be several things, good or bad. If you're really wooried bout adding something bad bleach the rocks, let them dry, soak them in clean water and re - cycle them. Otherwise "cooking" them the way you are doing for a while should kill the algae if there's no light and you should be fine.