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I've noticed an unusual behavior in my YWG the past two nights. He has started swimming to the top of the tank, and occasionally perches himself up high on the rocks, and even on the back of the powerhead! (see pic). He seems to act normal during the day, but in the evening (lights are still...

Was wondering if someone could help me ID these things that have been popping up in my tank. I noticed this one on the live rock a few weeks ago and today I found a few more. Looks like some kind of egg casing to me but I have no idea what it's from. 55 Gal. with: -2 Clownfish -Royal Gramma...

My wife sent me a pic of our YWG the other night when I was away at work. She got home late (1am) and turned the light on to check on the fish and she saw his color was grey/faded. The next morning she checked on him again and he looked fine! (See pics) Was something wrong with him or is it...

I'm looking for guidance on stocking a 55gal. Tank. I have about 60lb of rock and the tank is about 3 months old. Currently I have 2 clowns and snails/hermits (6-8 each). The next fish I want to get is a Goby/shrimp pair (any recommendations on specific types?) Then I would like to get a...

On 6/1 I added 6 Green Chromis (from Petco if that matters. Usually I go to an actual fish store) to my 55 gallon aquarium. They all appeared healthy - they were very active swimmers, schooled with my 2 clownfish, and loved to eat. Two days after I added them they began to die off one by...

Hello all, I just began to stock my first saltwater aquarium. It's a 55 gal. with approximately 60lbs of rock (50lbs dry rock, 10 lbs live rock). I cycled the tank with a raw table shrimp. I noted an ammonia spike and a nitrite spike. Both returned to 0 without any indication of nitrates...

I asked this question in the middle of a different thread, but I'm still not clear on the answer. What is the appropriate size skimmer for a 90 gallon tank? I was told to look for one that is rated for twice the volume of the tank, but skimmers usually have two numbers in the specs: -What...

Hello, I'm new to saltwater but I have kept a freshwater aquarium for a number of years. I am looking to set up a 90 gallon fish only/live rock tank. My question is, what would be appropriate filtration for this setup? I was thinking about turning my old 40gal tank into a sump and using a...