1. I read the forum at arofanatics that you should not turn on your protein skimmer until the tank has fully cycled. Is that true? Cos I turned on my skimmer since I set up my tank. What is the reasoning behind turning off skimmer?
Weird that you are naming arofanatics that the people there said that you should not turn on the skimmer. In fact most of the people there on their skimmer during cycling but thats optional. Maybe you are reading one of the older posts. Skimmer can definitely be switched on during cycling.
2. Saw 1 crab in my tank, 6-7 bristleworms and 1 clam. At first, I tot the clam was a piece of chipped of LR but suddenly it started to climb up the LR and upon closer inspection realise what it is. Going to try to catch the crab. As for the clam, necessary to get rid of it?
You can get rid of the bristleworms and crabs if u want. most people dislike them They can be useful at times though (eat up your unwanted food and dead fish)
3. My tank's temperature is 30 Degrees celcius. Should i lower it? If so, any brand of fans to recommend?
Profantec fan is good
4. My wavemaker (Eden 228) blows air bubbles into the water. Is this good or bad? I saw somewhere that bubbles should be reduced in the tank. Any comments?
By right the wavemaker shouldnt blow bubbles into the water.. u shld check whether if u have install correctly