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I have a 70g tank that's a few months old and I recently noticed brown growth on the rocks and in the sand. Its almost copper colored and its spreading quickly... I was told that it may be a sign that my lights are old but this doesn't seem possible considering the lights are new with the...

I have an established reef tank with over 100lbs of live rock and I’m considering adding about 100 more lbs is this too much at once and could it potentially cause strain on the environment? :notsure: From what I understand the more rock the better and more filtration. Are there any other...

I just got a brain coral and recently it started discharging some pink, green, and brown gunk. This fish are eating it. What is this stuff? Is it normal? Should I be worried about the fish eating it?

I just got a brain coral and recently it started discharging some pink, green, and brown gunk. :help: This fish are eating it. What is this stuff? Is it normal? Should I be worried about the fish eating it? :happyfish

Is it difficult to get Bangaii Cardinal fish? :happyfish I've been watching for them for a few months. Does anyone know if this a seasonal fish?

I have always wanted a puffer, but i dont want it to eat my coral has any one had luck with a puffer and not eating coral or inverts? I am looking at a Porcupine Puffer, but im not commited if there is a better one to purchase for a reef. :notsure:

How long does it take a tank to develop microfauna? Can you speed up the process?

I have a friend who has a flame angel and a coral beauty in the same 150 gallon tank. I always thought this was impossible…has anybody else put two angels in the same tank? Is there a special technique? He said he just put them in the tank and there were no problems. :happyfish