Hi, Having checked my tanks stats daily, I noticed my ammonia down to 0 over the last 2 days and decided to get my first fish. My very own little NEMO clown fish. Seems happy, althru it took me 30mins to get that picture. The lil fella moves so quick all the other pics were all blured smears of him/her swimming away. I did also pick up another piece of LR. This one seems to have more life on it then the previous ones. The tank was basically covered in some small types of (what i am guessing) anemones. Pretty small bunches, but with long necks. Growing on the glass aswell as covering most of the LR. Anyway here's a pic of it. Is that a sponge? also what is the black thing? was kinda slimy to the touch. Also the green plant seems to have small green ball/pod type things growing from it. 5mins after i put the sponge in, it started to turn brown . Is this a normal reaction from moving tanks? 10mins after. 15mins after slowly lighten up back to the first pic, but seems to be the same. If anyone can give me any info on whats growing on the LR I'll much appreciate it. E.G> is this a bad sponge? (heard some sponges are really toxic and will kill itself and everything in the tank also if aggrivated).