reducing my ich population using uv

[kjw]

can anyone recommend any uv? 

[Harlequinmania]

good brand UV like aqua UV or deltec , however if you want try cheap china brand it will work as well but you have to oversized it and their bulbs tend to fade / reduce intensity pretty fast. 

[Raymondyzw]

How do we know when the bulbs fade and is no longer as effective? How do we check?

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[dtdream]

you have to read the manufacturer instructions. usually a booklet inside.

 

[Crimson]

Best to size it according to your tank vol, water flow. diff manufacturers have sizing charts.

e.g from aqua uv

Saltwater UV Sizing Chart:

depends what you aim is algae or fish disease. e:g  A UV rated in the 75,000 to 90,000 columns will be the most effective at controlling fish disease.

[Yztan]

Would highly suggest Aqua UV, but the wattage is pretty much the most important factor in relation to your tank volume