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Lighting the Reef Aquarium Part 6: Coral Coloration – A Primer By Dana Riddle This colorful Acropora species is not fluorescent – the proteins it contains preferentially reflect red and blue light, making it appear purple. When I managed a commercial coral farm in the 1990’s, we were content just to grow corals and propagate […]

Lighting the Reef Aquarium Part 5: Tridacna Clams By Dana Riddle In Part 4 of this series, we examined the lighting requirements of a popular aquarium coral, Acropora. This time we’ll look at the light preferences of another popular reef aquarium inhabitant – the photosynthetic clam Tridacna. According to World Registry of Marine Species (WORMS.org) […]

We want you to have an Orphek product over your tank today! Bulk Reef Supply Black Friday Sales has already started and some of the Orphek products are already sold out! If you are located in the USA or Canada don’t miss the opportunity to buy Orphek products with 25% off!! Other Orphek Products that […]

ORPHEK BLACK FRIDAY & CYBER MONDAY DEALS STARTS TODAY! Black Friday is 2 weeks away but we didn’t want you to wait until the day after Thanksgiving for Black Friday deals, so we kicked off the savings a little early. COUNTDOWN: From Saturday, 10th through Friday 30th, Orphek is helping make Christmas happier for you with […]

I’ve been using 4 of the OR 90 strips over my SPS tank for about a year The tank is a 6 foot wide 135g SPS-dominated reef. The tech is nothing: Small sump, small return pump, basic skimmer, pair of Vortech WD40 QD for extra flow. Starboard (cutting board) on bottom of tank, no sand. […]

Light Requirements of a Coral Genus Often Found in Reef Aquaria By Dana Riddle In previous installments, we have discussed how to measure light intensity, reviewed light requirements of a Hawaiian coral, and discussed terminology. This time, we’ll look at light requirements of a coral genus often found in reef aquaria – Acropora. Acropora is […]

Orphek Atlantik V4 GEN2  Review and  time lapse video by Ryan Would I recommend these lights to a friend? Haha is that a joke?! Since buying these lights I have been actively trying to get every friend I know to switch over to these lights. After first getting them I was just blown away by […]

The Myth of Corals Requiring Unlimited Amounts of Light  By Dana Riddle I had the pleasure of living on the Big Island of Hawaii for almost two decades and took every opportunity to study the natural reefs there (See Figure 1.)  One of my projects involved the determination of light required by photosynthetic corals (note: […]