Should You Expose Your Fish To UV? Is UV exposure good for your fish? Let’s shed some light on this question. UV plays a vital role in cellular health, much like it does for reptiles, but too much can be harmful. In aquariums, UV lamps can control algae and microorganisms, but for indoor tanks or ponds, it’s tricky. Not only can UV harm fish in excess, but it’s also risky for humans. For everyone’s safety, it’s usually best to skip UV lighting in your indoor pond setup. Follow for more insightfu