I started keeping saltwater tanks in 1996 and since then have used many different tools and instruments to measure salinity. At first it was with floating glass hydrometers, and soon thereafter it was swing arm hydrometers. These two devices use the…
New CalcFeeder AC Mini from PacificSun
PacificSun really surprised us with their original CalcFeeder Pro which uses an optical sensor to automatically monitor dissolution rate, and now they’ve gone ahead and made an even smaller model. The CalcFeeder AC Mini is the newest model in their…
Free Sharks & Rays of Papua New Guinea eBook
Shark lovers, especially tropical shark species, will really appreciate a brand new free eBook on the Sharks & Rays of Papua New Guinea. Published by the PNG National Fisheries Authority and the Australian Government, this 300+ page digital document covers…
Life On Earth Would Suck Without Coral Reefs
If you’re reading Reef Builders on the regular, there’s a good chance that you wake up thinking about live corals, how to grow them better, make them more colorful, and the frags you’ll get or share with reefing friends. But…
Standout Acropora & SPS Corals of Palau
As a hobby that loves and appreciates live corals, all of which originate from wild coral reefs, I don’t think we are nearly in touch with what wild corals are really like. To bridge this gap we try and travel…
Tell the Hawaii Senate Water and Land Committee NO on SB2003
The Hawaii Ornamental Fish Collectors are under fire again, this time with the threat of near total shut down with a damaging bill called SB2003. Only you can make a difference to help stop this bill not with money, but…
What Is A Roasted Seahorse-on-a-Stick Worth?
Floating markets are a very popular tourist attraction in Thailand where tourists flock to shop many unusual items and especially ‘street’ food. However one vendor recently caused quite a commotion by selling roasted seahorses on a stick. Despite having virtually…
10 Reasons To Love The Seachem Tidal Power Filter
The Seachem Tidal power filter was one of our favorite products of 2017 but I realized I never really dove into why I think this device is so great. The saltwater & reef aquarium hobby tends to exalt the more…
ReefStock 2018 to Feature Three Powerhouse Presentations
Since 2008 ReefStock has maintained a high standard for our presenters and in the ten years since, ReefStock has developed a reputation for attracting some of the best speakers from across the aquarium world. We’ve featured some of the most…
Urocaridella degravei, A New Species of Arrow Cleaner Shrimp
There’s an incredible diversity of tropical shrimps that live on coral reefs and a whole suite of them perform cleaning services for reef fish. We’re all very familiar with the common red line cleaner shrimp, Lysmata amboinensis but there’s a group…