I’m still new to corals and learning. I bought this Jade Yuma mushroom in November. It looks like another one has started growing on the left, but does the larger one look bleached? Color wise it’s significantly different than the new one growing on the left. Is this normal? Here’s a pic of what I got and what it’s looked like over last few months. There is also some sort of black sludge/sponge that has been there ever since I’ve had it. I’m not sure on par level (plan on renting one soon) but I have it in the lower part of the tank near sand bed
