by Fugu » Thu Sep 29, 2005 7:01 am
Usually, tap water is considered dirty water, unless you test it for nitrate, phosphates, silicates and heavy metals yourself. RO or RO/DI water is recommended for reef tanks. I've always accepted this as an absolute must but maybe you are one of those lucky ones with clean tap water? I highly doubt it though.
Munch, Scream
Welcome to Reef Philippines
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Fallow tank
16 watt UV sterlizer
T5 + 250 watt MH HQI 20k XM
H&S skimmer.