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I've noticed that my green button polyps are starting to turn white. Does anyone know what may be happening? I've had them about 6 months and color change started about 2 weeks ago. All water parameters are fine. Too much light? Thanks.

Thanks!

Nothing has died in tank recently. I've been using a Tetra test kit and it's over a year old. What brand kit should I use? Also, lately I've been doing water changes with distilled water, is that bad? Thanks.

7 months

My nitrite level is at .3mg/l. What are causes of this and how do I lower it to zero? Also ph is at 7.7mg/l. Can I use a buffer to raise this? And amonia is at 0. 20 gallon 15 lbs of lr 3inch live sand bed 10 turbo snails 10 blue leg hermits 1 small coney grouper (Not appropiate for this size...

I was just wondering. On two occasions now, I have found hermit crab legs laying on the bottom of my tank. Maybe the hermit crabs are fighting amongst themselves.

Will a Lunar Wrasse kill a hermit crab or even just nip it's legs off?

Do I simply just scoop the cc out and pour the LS in while the water is still in the tank? Should the bed be about 3 or 4 inches deep? Also, can I leave the live rock, anemone's, and hermit crabs in the tank while replacing the cc?

If i already have cc for substrate can't I just pour ls on top of it? If not what kind of procedure do I need to do? It's a 40 gallon with a few anemones and about 30lbs of lr. Will adding new substrate cause my tank to cycle?

thank you

If I have a tank that is already been running for four months can i add live rock? Will the rock die if it is added? What does cured mean?

Thanks everyone!

How do I feed the aneome though? Do I put the food directly on it with my hand?

What should I feed a rock anenome, how often and how do i feed it?

I recently started a reef tank and added two rock anenomes two days ago. Today I noticed white bulbs protruding from the middle of them. Is this normal?