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I have 2 fighting conchs in my 75g. On at least 4 occasions I've seen them eating my astrea snails. Are they eating snails that couldn't right themselves and died, or are they killing them?

I have 3 good sized purple urchins. I was hoping maybe someone would send me a frag or something in exchange for any or all of them. I would also be willing to give them away if you pay the shipping. Their bodies are about the size of a quarter, not including spines.

My dad has a 33 long with a golden headed sleeper, lawnmower blenny, clown goby, wheeler's goby some corals, hermits, snails etc. He woke up this morning to find 3 fish and a sally lightfoot dead. The corals, featherduster, hemits and snails are all fine. Also, the pistol shrimp and goby pair...

I currently have 260w of PC consisting of 2 65w actinic and 2 65w 12K. I still have the original single bulb NO fixture that came with the tank, I figure I might as well use it. What color bulb would you add to this combo. More actinic? 20K? Moonlight? 50/50? TIA.

I recently purchased a nice assorted mushroom rock at the LFS. Several of the polyps have small reddish spots on them about the size of a match head. The other day I noticed they were actually raised bumps on the polyps and not part of the mushroom itself. I was amazed to see them move! They...

I have a 42g hex w/ 2 false percs, lawnmower blenny, twin spot goby, bangaii cardinal, cleaner shrimp, emerald crab, sally lightfoot, and some snails and hermits. I recently noticed my emerald crab was down to 4 legs, 3 on one side and 1 on the other. Last night I noticed my sally lightfoot...

I've had my 6 stage 125 gpd ro/di unit for a while now, and it just doesn't put out much water. We're talking like 1/2 gpd output here. It's the first thing in line when the cold water comes into the house, so I don't think it's a pressure issue. Now that I have 150 gal worth of tank water it...

I am in the process of making a closed loop style spraybar for my 75g. Is there a reef safe way to color the pvc black? I heard somewhere about using a sharpie. Is it safe? I was also thinking about wrapping it with electrical tape. Any thoughts on this? Would it hold under water? Any other...

My dad has a DIY tank that's about 200 gal. It' a big cube, about 3 ft on each side. What do you guys reccomend for filtration on a tank this size? Menards has a pond filter on sale for $129 that's rated for a 3000 gal pond. It's just a giant canister filter with a couple compartments for media...

I have a 29g that will be ready for fish soon. I'm going to add a jawfish first and let him settle in. Does anyone have any suggestions on tankmates? I have a 42 with 2 percs, a bangaii and a firefish, so I don't want any of those. I really like copperband butterflys. I know they can be...

I have a 42g with LR, skimmer etc. It's been running great for a couple months. I have a 75 FW I've been thinking of converting. Is it advisable to do a FO tank with just a HO filter? A small LFS I know of has all their sw tanks running individually with Aqua clear filters and no LR. Their stock...

I recently bought my first sw fish. I had been keeping my sg around 1.023, as I thought this was in the acceptable range. When I brought my fish home, I checked the water in the bag. The sg was 1.017, well below the target range on my hydrometer. When I bought my second fish from a different...

hi

This is a 20 gallon I built into an old console tv. It is home to a pair of kribensis and their fry, 3 dwarf gouramies, a dozen or so neons, 1 celebese rainbow, 2 black angels, an otocinlus, and a green cory. Someday I would like to find a black and white background.