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Caulerpa algae need lighting for photosynthesis, nutrients (nitrate + phos) and trace elements that comes from the water.

Are you siphoning during water change? Because detritus that sank into the sand will cause nitrate to build up.

Getting MH lighting will cause excess heat up on the aquarium. Hence, a chiller unit comes in. That incur more cost involved as well.

I want to upgrade lighting. Does ati T5 3 x24watts power lux retrofit sufficient for reef aquarium (i.e. clam, LPS, SPS, etc.) Tank size: 2ft ( approx. 20gallon)

True clown are not as hardy as falsh percula. Check water parameter. How long had you cycled your fish tank? Is there any LR in your tank? Are they cured?

I'm adding seachem reef builder and reef advantage calcium in alternate cycle.

My fiji LR is covered with lots of coralline algae (purple color). What does coralline algae helps in maintaining marine environment?

Ok I get the idea. Else, we wll be drifting out of the topic from coral to lighting. :oops: Based on the low/moderate light, what kind of the soft corals will be recommended? So let me begin with the list. 1. Bubble coral 2. sea fan

Since you are planning to get a refugium, add some caulerpa algae into your refugium. caulerpa algae will fight over for nutrient (i.e. nutrient here means nitrate, phosphate which come from animal wastes.) Hence, hair algae will gradually die off due to lack of nutrient. Hope that well :wink:

Hmm, how low? Lighting issue is alway being such a debatable question. Many factors considering in lighting setup. Low or moderate lighting may/could be refer to using normal FL light or combination of compact power light (e.g. corallife 10K/20K kelvin, 15watts), actinic lighting (e.g. zoomed...

Hi there, Can anyone help me to list down the types of corals suitable in lot or moderate lighting enviroment? Thanks :D

Thanks for the information. Will share such knowledge with my neighbour.

Is a 2ft fish tank. I don't know whether he check on the ammonia or not. Will ammonia harm the microorganism in LR?

He told me that he would change the water using distilled sea water weekly. I know that once he had increased the number of fishes in his tank to 14. But many of them died, left 3 now. Kindly inform any info you need beside the above. Thanks. Regards, hippo

Hi there, My neighbour had told me that some of fishes in his fish tank was dead after he discovered that one of the live rocks had rotten, due to those microorganism living in it had died. What actually caused it? :roll:

Hi Steve, Thanks for your reply! My damsel was quarantieed for 24hrs without any medication treatment at all. Residental fish are curious, particulary two african clowns that had checked out on their new mate. There is no violent harassement going on, except was chasing it away by one of the...

Hi, I got one blue damselfish just died!. This fish was recently added into my tank after quarantieed. I had observed it always stay at one corner when it sleep. It is that the fish due to lack of hidding place? Most of the hidding place were occupied by resident fishes. This fish join the...

I had started up a 30gallons fish-only tank with some clowns, a damsel and a blue tang. Thought of adding two anemones into it. Just wonder what does it feed on and how to maintain its health and how is its lifelong?