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I have a 30G reef and recently upgraded the lighting. I bought 2*130w PC 6500K and 14000K but I think for the size of the tank, 260W would be too much. I have decided to use 130w only but I am not sure which is better. I also have 2*20w daylight and actinic as a spare. Which is better? I am...

Hi there, I have a fish and reef tank for 6 months and things were going well until recently I had to move the tank to another spot in the house and re-arrange everything. In the last 2 weeks, brown stuff are appearing everywhere, substrate, glass and rock which I think are diatoms. I have...

I recently acquired a bubble coral - plerogyra and I have been reading about it. Someone mentioned that it should be fed with brine shrimp, krill etc but am I meant to feed it directly like an anemone or just feed the water? Someone also mentioned that the sting can be poisonious!!!! Please help

I bought a nice zoanthid 2 days ago and the water in the bag was a little cloudy and it released some sticty material when handled and now it has some white stuff on it. What do I do? I have a second problem, the torch is always contracted because the Yellow Goby is always sitting on or next to it.

Recently I got myself 2 corals, Torst and Zoanthids but I want to know how to care for them. How do use attch them to the rocks? What do you feed them? Do you need a blue marine light for them? By the way, I have been visiting aquarium advice site for 2 months and I must say it is the BEST...

I have a green 'thing' on the rock with long legs and no body appeared out of the blue. It could be from the new rock that I bought recently. Anyone has any idea what it could be?

I have a 6 weeks old aq with dead rocks and LR with fish and recently I noticed a lot of brown stuff on the rocks, substrate and glass. I presume they are algae and probably due to too much light. I have a 150 litre tank with 0 ammonia and 0 nitrites. The fish are happy and healthy. What am I...

I bought some liverock yesterday but I want to cure it before putting them into the main aquarium. I read your article about curing the rocks and I have a few questions. 1. I can see some worms in the rocks, are you suppose to remove them? 2. How long before you can put them in the tank? When...

I have a new fish only tank with a blue tank and 2 clownfish but one of the clown has white spots on the fins. The ammonia level is rising since I introduced the clowns. Nitrites is 0 but ammonia has risen to 0.5. The tank is 150 litres. What is the best course of action?