hongqixian

More exact: http://www.saltaquarium.about.com/ Please don't buy any jellies at least until you've read up on them. How will you feed them? Filtration system? Anything else you're keeping with them? Can they get trapped in anything in the tank?

**di

It is quite a good brand. I use their 18" 15w Coral Sun Actinic bulb and it is pleasing to the eye and make the corals glow. True blue.

Not quite- In a small tank a prawn would foul up the water quite a lot- If it is wanted then a shred should be enough.

Algae will grow on the glass covered by sand if there is light. No big deal. If you just clean off the algae above the sand or keep snails to feed on the algae then all will be fine. Those are diatoms and a powerhead won't faze them. Most snails like nibbling at them.

Is it a carpet anemone? They are extremely good at catching small fish.

They are mostly good scavengers (dun clean substrate- eat up food)but the Green Serpent Star (ophio.... venosa I think) eats fish. If you see any large green stars stay away from them as they like to stretch their arms over an overhang to capture small fish (probably best at night). Black ones should be safe. Marine Life is at Hong Leong Gardens at Clementi. They sold the green serpent stars before. Black sand sifting cucumbers are quite good but make sure they don't starve. One in an established 3ft with a sand bed (I don't mean DSB) should be good.

A long time ago.... I had a small frogspawn coral in a 2ft. It was expanding quite well every day. One day I changed 5-10% of the water with saltwater mixed for 15 min (well, the tropic marin box said that it can be used as soon as the water turns clear) The frogspawn shrank up immediately. The next day, it didn't expand fully like it used to. Judging from the difference in 2 days, I blame the sw. I changed a bucket of water recently (in my 2ft tank) with tropic marine salt mixed for 5h instead of the usual overnight mixing (Dun want to waste power running the powerhead and also evaporation of water in the bucket) My xenia bunched up immediately and didn't stretch out fully the next day, which didn't happen when I used overnite mixed sw. Luckily after a month it's ok and back to normal now. Scared me for a while. Other ppl on other forums have advised me to mix at least 6 hours and I'm not going to risk my inverts again. Your tank- your choice

I think that maybe it would be better to attach it straight to a tap.... Having it in the shower makes the water go thru the heater first which might add more impurities and use up the filter faster. What is the brand?

Most pods are harmless and very common. Unlikely to be nudibranchs. http://www.rshimek.com/odd_critters.htm#Coral%20Fleas Mandarin fishes only eat copepods and maybe younbg amphipods but they usually don't eat fully grown amphipods. Too big. In a small tank, say maybe under 55 or 100 gallons, copepods can be wiped out in a short time by a hungry mandarin and other predators like fairy wrasses.

If the water change was done with salt water mixed for less than six hours or without a powerhead then the undissolved buffers could have killed/burned some invert?

So either you get more nitrite or nitrate.

The 2ft tank has Tangs! Big no no. No wide open space for them to swim and they grow too big. Too many fish. When the tangs died, the resulting ammonia if they were not taken out immediately will kill inverts, setting off a chain reaction of deaths by ammonia. Anemones will cause lots of ammonia and mess if they die in a tank. What was the temperature? the cause is most likely temp too high or ammonia or oxygen depletion. AT, Water in a 2ft tank boils if there is no chiller or aircon and 2 powerheads.

Probably one of those worms. Some burrow in rock with only the head poking out, like a single headed christmas tree worm. I saw one quite big white one popping out of a rock like a mushroom before somewhere. Very nice and harmless. I have one that is almost transparent with a white band on the middle of the feathers.

What if they tell you it's depleted to sell you a replacement cartridge?

They will eat shrimp. Most Freshwater/Euryhaline fish really aren't nutritious enough because they lack some vitamins found in marine fish but I suppose it helps if you enrich with vitamins. And freshwater feeder shrimp cannot be acclimatised to saltwater. They just die slower, say taking 1/2 hour or more.

http://ourworld.compuserve.com/homepages/m...al/clodpage.htm Orange Coralline Disease

I've seen one once before on the sand of one of the coral tanks at some LFS. Keep a watch on it, but I don't think it grows and stings like aiptasias but it might be a nuisance.

Phew! Thought you were Ah Meng in disguise.

Are they a bit stripey? There are other colour forms and species of Parazoanthus. Anyway you can try www.cautiouscoral.com (lots of funny anemones there) and www.reefs.org/hhfaq .

Snails.

Wool and bio balls are not nitrate factories if CLEANED REGULARLY. Bio Balls are called nitrate factories because they tend to trap dirt within the large bacterial colonisation area that they provide. So it's not perfect. They are OK if you just take them out and swish them around in old tank water once in a few months. Filter wool traps dirt like waste particles and uneaten food. Either those particles get eaten or they rot. If waste gets trapped & removed with regular washing/changing of the filter wool and the uneaten food is removed quickly you will have very little nitrates to deal with. Its just a different place for the dirt and uneaten food to rot. Maybe some food particles in the water eventually gets eaten by micro critters but it all adds up to nitrates and the critters will adjust their population to the amount of food. The coral chips, bio rings, carbon and poly-filter pad can all trap particles in the canister. Rinse them in a tub of old tank water to remove the dirt but preserve the bacteria. DSB is not needed in a 2ft tank. It traps gunk and those rot inside too. Eventually all the toxic gases that can accumulate inside can kill the bacteria and the DSB fails. Live rock will seed your sand by itself.

Live brine is not nutritious enough. Feed meaty frozen foods as well if it accepts those and at least enrich the brine with some vitamin supplements. DO YR HMWORK before buying fish!

Sorry: http://aquakeeper.topcities.com/nano_setup.htm And you can put your own medium. You don't have to use the expensive cartridge. Get the Eheim 200gph which is the biggest and use a small filter media bag to put in some carbon or what. You can use filter wool instead.

Maybe yellow polyps Parazoanthus gracillis Where are they growing?