Coeloplana: Benthic ctenophores living right under your nose

Ctenophora is a phylum of marine animals most commonly referred to as comb jellies. You may have seen these in various documentaries, manifesting themselves as gelatinous geometric shapes fringed in movable cilia and psychedelic disco lights. This phylum is huge and…

Reef Primer, a new coral dip from Polyp Lab

Polyp Lab has a new coral dip called Reef Primer which is billed as being “premium” at treating all kinds of undesirables for the coral aquarium. Reef Primer is a blend of various salts which are said to be effective…

Lots of things can kill corals, suicide is not one of them

Over the years I have been asked a lot of questions by hobbyists regarding their corals and their tanks. Of these queries, the single most frequently asked question is” Why are my corals dying or why did this coral die?”…

Trio of eye candy coral videos focus on fluorescence, macros and time lapse

If any animal is more worthy of closer scrutiny using macro video, time lapse, and fluorescence exposure, than corals, we don’t know what that creature is. Long time readers of Reef Builders will be familiar with the semi-regular sharing of…

Survival on the reef part 1: Masquerading under false colours

Look at this amazing pair of Meiacanthus grammistes. Eh hmm…wait a minute. That’s not quite right. Look closer. Cardinal fish? Bingo. This is a pair of Cheilodipterus nigrotaeniatus and they are excellent mimics of their venomous fang blenny models. Mimicry is an…

DVH Coral Protec is a new coral dip from Europe

DVH Coral Protec is a new coral dip from Europe that is making its way across the pond and into the US market. Although there is no shortage of coral pest eradicating products on the market not every one is…

Dr. G’s SPS & LPS Coral Dip Solution

Dr. G’s SPS & LPS Coral Dip Solution is an aptly named coral dip with a new take on how to cleanse corals before putting them in the aquarium. Dr. G’s Coral Dip Solution does not use pine oils or…

Good at Gardening? Try Reefkeeping!

Having once worked in the nursery and landscaping business, it often occurs to me that there are a surprising number of similarities between terrestrial gardening/landscaping and reefkeeping. I would even suggest that, in some ways, reefkeeping has more in common…

The Many Faces of Mimicry in Marine Fish

In the fish-eat-fish world of the coral reefs, it can sometimes be beneficial to look like something you’re not. This strategy, known as mimicry, is employed by a wide variety of marine fish and other organisms in order to garner…

New Crowdfunding project tackles the dreaded AEFW

Even the hardiest and most seasoned aquarium veterans are susceptible to the dreaded acropora eating flatworm(AEFW), only recently described as Amakusaplana acroporae. The dreaded AEFW can devastate an aquarium relatively quickly taking years of growth out in a matter of…