blueray

but the tube indicate 21w/b leh.....

Hi All, I have a 3ft T5 2X21W blue 2X21W white, 3ft 2XPL24W blue/white. Can I change all the T5 to white and increase the W? so that I can change the PL to all blue. is it advisable? my next question is does the corals need blue light or which is better, blue or white? thanks for the advice.

Hi snowman, please pardon my silly question but what is a sand dollar?

Hi All, there's anything that I need advice on. I have stacked my LR in my tank but it doesn't seems enough. Please take a llok at the photo and advice me on this matter. can I carry on to stack more or should i stop? thanks for the advice.

Hi All, thanks for the advice. I will feed it promptly everyday and make sure it is fat fat.

Opooss...I will start feedng it everyday...

Hi LaW, I do feed it, but it seems to be chosey on food... but I only feed once every 2 days...do you think it's enough? cheers,

Hi All, just to share an amzing thing I saw in my tank today. my yellow tang is eating a bristleworm!! take a look.

Hi, I am a newbie to this and need to get a calcium test kit. can I know which brand is the most accurate and simplest to use? thanks. I need to other test kits too....PH, KH, PO4 etc, would be good if anyone can advice. thanks.

ya me too....I have been trying to find chaeto but can't seem to find them. anybody got lobang for them?

Hi there, I am a newbie here. does the mangrove require light if it is located in the sump? the other thing is macroalgaes, how do you cultivate them in a tank environment?