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Also I have about 4 mexican turbos and 5 blue legs. A horseshoe crab, sand-sifter starfish and two sea urchins. My MH lights are on for 8 hours and my 10,000k and blue light are on for 12.

The tank is about 2 years going, i use r/o d/i water, i have 2 powerheads and one rotating powerhead towards the bottom of the tank. I have been reading up on the diatoms and i think it might be my lights. I have read that one common problem is that the spectrum of the bulbs might be running...

I have a 90gal with alot of live rock that is all covered with brown algea. This ruins the look of the rock. What is it and how do I get rid of it. I have noticed that it has appeared ever since I hooked up two 150 watt MH lights???? I also get it on the surface of the sand.

Silversides, cockle and brine shrimp.

Ammonia is 0. PH is 8.0. Salinity is 1.019. I am not sure what my Nitrate and Nitrite is. Do you have any suggestions? Also the tank is a 90 gal.

I have 2 150 Watt MH for 8 hours a day with blue and 10,000k fl, for 10 hours a day. All of my levels are good. The only thing I can think of is that my water temp might be high, between 82-85. Thank you for the reply.

:notsure: I have a green bulb tip Anenome. It split about two months ago and since then it has not really opened up and/or brightened up like it used to (neither piece). Is there a period that they go through after they split? If so for how long, or is there something wrong?

With Mh or any other light for that matter, do you keep the glass on the top of the tank or not? Basically is it alright to have the galss in between your lights and the water? Or does it even matter?