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I have at least 10 very very little starfish that appeared on my tank walls today. They are about the size of big grain of coral sand. I had 2 sand sifting starfish. One died about 3 months ago and I haven't seen the other one for about 6 weeks (I assume it died). I still don't see the adult...

I'm looking for a recommendation for new fish that I can add to my tank. I only want to add one or two medium size or a few small fish. I'm looking for entertaining fish. I always research fish (and anything else that I add to my tank) and have checked out many but nothing is better than a...

I noticed tiny black spots on my Regal Tang on 12/5 (and rubbing against the rocks). I took him out of the DT and put him in the QT on 12/6 after a freshwater bath. I gave him 2 more freshwater baths while I lowered the salinity in the QT to 1.009 with water changes over 2 days. The black...

Hi all! I have a 48"x24"x24" that is my first reef tank. I have a current sundial fixture - 48"x9.5" with 4 t5s: 2 Blues, 1 Actinic, 1 superwhite (all ATI bulbs) My LFS told me that this was fine for zoos, mushrooms, leathers, etc. I have a zoo and a couple of mushrooms that are doing great...

Probably a rather odd question but when I put a dried seaweed sheet in my aquarium on a clip, my tangs and angel tear it up and big pieces often come off. They come loose and get sucked through my vortech 40 blowing them all over the tank. Is there a trick to putting these in the clip or is...

I just setup a 120g with a sealife reefmaster pro (with fuge) sump. I have a mag7 and rio2100 submersed pumps as returns and a rio3100 submersed pump feeding my external Aquac ev180 protein skimmer. No matter how I arrange the pumps, I can't eliminate tiny air bubbles - mostly maintained to...

I just bought this PH. It's going into a 120g 48x24x24 reef tank. With megaflow system (2 overflows in back - not corner overflows). I only have the one PH but also have a K4 PH. Will I need both? What should I set the wavemaker on for the vortech: Lagoon, Reef Crest, Pulse??? Thanks!

I'm planning the following fish for my 120g reef tank that is now cycled with 150lb LR - in order of adding them to the tank 2 Ocellaris Clowns (now) 1 (2-3 inch) Regal (blue hippo) Tang (1 week from now) 1 Flame Angel (1 week from now) 1 Yellow Tang (5 inch) - (3-4 Weeks from now) 1 Sixline...

I've setup a new tank. Aqueon megaflow 120g (48x24x24) with the following (up about 3 weeks now and seems to be fully cycled): 170lbs live rock Sump with micron sock and refuge Aqua-C EV 180 gallon protien skimmer I currently have a 55g FOWLR tank that I will be getting rid of with the...

I am setting up a 120 gallon fish only tank and am looking for a protein skimmer that can go into (not take up much room) or hang onto my sump. Any recommendations?? I was going to get the Coralife Super Skimmer 220 gallon but have read some pretty bad reviews. Thanks!

I currently have a 46 gallon with a current sundial T5HO. I bought a 120 gallon 48x24x24. I plan on making it a FOWLR but may want a few corals in the future. Any recommendations on a light? Thanks much!

I am setting up a 120 gallon tank that I plan on being FOWLR but may enter a few corals in the future. Can anyone recommend a good but reasonably affordable lighting system? I'm thinking T5HO?

Can anyone recommend a decent RO-DI unit for a reef tank - between $150 and $350?

I am starting up a new 180 gallon FOWL and may plan to change to coral down the road. I have had some people tell me that I should not put sand in the tank it only holds nitrates?? Any thoughts?

Nitrites and ammonia fine. I cant get Nitrates to stay below 40. I have been doing a 25% water change once a week and the nitrates go down to just below 40 but then 3-4 days later they are at 80. Do I need a better filter or filter media? Any help is appreciated. I have a 46gal tank that's 7...

Nitrites and ammonia fine. I cant get Nitrates to stay below 40. I have been doing a 25% water change once a week and the nitrates go down to just below 40 but then 3-4 days later they are at 80. Do I need a better filter or filter media? Any help is appreciated. I have a 46gal tank...

I have 2 Hydor Koralia 650gph powerheads and a fluval 305 canister filter. I got 3 anemones about a month ago and 2 have been sucked all the way into the powerhead. They also sometimes got sucked onto my filter feed. Is there anything I can do or should I just get rid of the remaining...

I have 2 Hydor Koralia 650gph powerheads and a fluval 305 canister filter. I got 3 anemones about a month ago and 2 have been sucked all the way into the powerhead. They also sometimes got sucked onto my filter feed. Is there anything I can do or should I just get rid of the remaining...

I had 2 Banggai Cardinals and one died. I got a replacement and acclimated it and put it in the tank 2 days ago but it just hovers in the upper corner of my tank away from all of the other fish. I don't have any aggressive fish and the water quality is fine but the nitrates are a little high...

I have had this sea urchin for about a month now. I read that if it starts loosing it's spines, it is not doing well. It seems to be just fine but I did notice that it lost a spine the other day while it was moving by a power cord and today it lost 1 more when it was between 2 live rocks. Again...