This is a royalty-free photo covered by Creative Commons License CCO.
Sperm whales or cachalots Physeter macrocephalus are world’s largest toothed mammals, and they have the largest brains of any living things. They belong to the cetacean group of mammals along with dolphins and whales.
Sperm whales get their name from spermaceti, secreted by the spermaceti organ. Spermaceti is an oily substance that fills up a large cavity in their heads. People called the oil spermaceti because they...
Note from the Editor:
Starting a saltwater aquarium can be frustrating. There is a lot to learn, a steep learning curve, and many learn what they need to know after they needed to know it. Many experienced reefers look back on the days when they first started and shake their heads. There is so much they wish they had known; so many rules that those beginners didn't think applied to them.
So, in a departure from our regular fare, we have below an article written by one of our forum members...
Note from the Editor:
Keeping your tank clean is important for a saltwater system. It's not just important for the livestock, but it's also important for your viewing pleasure. We want you to feel happy when you look at your tank, not dread because the tank is dirty.
What may feel overwhelming for the beginner is much more manageable when you break it up into smaller tasks. So, the author of this article, Robert Woods, has done just that.
Photos included here are from the Reef2Reef...
Background Classification
All of the hard corals fall under the order, Scleractinia, which falls under the subclass Hexacorallia. Hexacorallia is under the class, Anthozoa, within the phylum, Cnidaria.
So, when we talk about SPS coral, some people say, "small polyp stony" coral, while others say "small polyp Scleractinian coral" which means the same thing. It's worth noting that the terms "SPS" and "LPS" wouldn't be found in any marine biology book as they are terms used exclusively in the...
Dear Hobbyist,
Here at Red Sea, we take coral lighting needs seriously. And after years of research and testing, Red Sea is proud to release the all-new ReefLED™ smart reef lighting system. These lights have been designed to ensure optimal coral growth, dramatic coloration and a gentle shimmer throughout the aquarium.
The ReefLED lights are guaranteed to be Reef-Safe and REEF-SPEC® and with its unique daylight channels they’re also very easy to set up. The built-in wi-fi connects them...
