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Hi guys, some of my Live Rocks are rapidly developing large brownish areas. You can see them in the picture but my camera was too accommodating and gave the thing a nice reddish color. I assure it's much less appealing and browner in reality. Is this just some good kind of coralline algae or...

Please help me identify these. The white tube-like things have little reddish 'flowers' sprouting out (they retreat when lit with a flashlight). I have litterally hundreds of these everywhere, the biggest ones are over 1" long. These are worms of some kind. They are all over the edges of the...

I'm experiencing something funny: in a corner of my tank, where water circulation is at a minimum, there's an area about 1/2 inch wide beside a large rock (which is acting as a shield from the upper powerhead) that runs along the side of the tank. What happens here? Any kind of detritus, might...

Hi, I have 2 blood shrimps (lysmata debelius) in my tank. One is fairly large, they molt regularly, they're happy and all. I was planning to add another shrimp or maybe a couple. I'm interested in a lymsata amoboinensis or a wurdemanni. Are these compatible? Or the bigger blood shrimp is going...

Hi, I have a 2 months old, 55g, FOWLR tank. My lfs gave me this product to 'feed' the LR, which is a Calcium +3 formula containing calcium, iodine, molybdenum and strontium. My question is: do I really need to add this even if I have no corals? The only inverts in the tank are 2 hermits, 4...

This might be hard as I don't have a picture (digicam is already on order. I know I need it). I just found this molt-looking, shrimp-like, transparent little thing floating just over the sandbed (it's actually crushed coral). I took it out. It looks like a molt, but it is so small it could even...

Hi everyone, today at the supermarket I bought two little cans of shrimp and baby clams. Won't help telling you which brand because I live in Italy and it's an Italian product. I wonder if you get the same kind of stuff over in the US, but they're supposed to be 'natural', meaning the only...

I've been having these for a long time but I can't for the life of me figure out what they are exactly. I suspect they must have something to do with tubeworms or polychaete in general. What I see is little bunches of tiny (2-5 millimetres in lenght, around 1mm or less in diameter) white tubes...

Just wondering: I got 5 gallons of saltwater from the lfs last week, but I couldn't do the water change I got it for right away so I just let it sit here for about 8 days without any air, movement, or heating. Now I'm ready for a water change; after adjusting it to the tank temperature of...

Do you guys regularly vacuum your sand beds? I was wondering if that is required, or in any way beneficial. I have a 50g tank, 3 months old, with 4 fish, 2 blue legged hermits, 4 turbo snails, 2 blood shrimps and a fromia starfish. I noticed I have a huge number of pods crawling all over the...

Hi everyone, I'm considering a copperband butterflyfish for my 50g (currently inhabited by a medium sized blue tang and a small ocellaris clown). I just need to know if it would fit in with no problems in my tank and if it would possibly bother my starfish (a fromia) or my cleaner shrimps...

Hi, I have 2 small false percula clowns (ocellaris) that are showing some pretty strange behaviour. First off, they are not eating. They were the first fish introduced (a month ago) and they used to eat a lot. I mean a lot, and all kinds of foods. In the last week or so they never "fight" for...

Hi, I had a UV lamp installed about 10 days ago, and I noticed this morning it had a small leak. I used silicone (specific for water leaks) to seal the leaks, which where occuring around the area where one of the hoses is connected. Please notice we are talking one or two drops of water every...