Most marine aquarists keep mixed reef aquariums, some of them are very small ‘nano’ systems and others could be six footers, large in the hobby world. There are a few who own aquariums even larger. Other aquarists have fish only systems that could be the same in size range to
Read more →There is little argument nowadays over whether or not there is any decline in the health of wild coral reefs. The discussion now seems to be more about the speed of decline. Some reefs remain relatively fine, but others are getting into a sorry state. Scientists tell us about the
Read more →Marine aquarists use a hydrometer to measure the specific gravity (SG) of the seawater. The hobby hydrometer is not a pure scientific instrument but is capable of sufficient accuracy to enable stability of the SG – provided the aquarist does at least a weekly check. Marine aquariums come in two
Read more →British scientists from the University of Essex have developed a robot fish which has the capability to be able to detect pollution in water. Each of these fish has an associated cost of £20,000 and a shoal of five of them are shortly to be released into the Bay of
Read more →Our friends over at the Marine Depot Blog submitted a post about this yesterday and we were so impressed with their committment to such an important cause that we thought we would try to help increase exposure about what they are doing. Marine Depot describes ‘Cell Phones For Soldiers’ as
Read more →For a marine fish only aquarium lighting is simple, the fish need to be able to see and be seen. For a reef system the lighting is more complicated, as not only do the fish need to see and be seen the corals will normally have zooxanthallae within their flesh
Read more →We have had a few people contact us asking what is in our new book and who it is beneficial for. We have replied to them but I thought it might be beneficial if we listed this information on Aquarists Online as well. Basically the book is available in both
Read more →Aquarists have a choice of aquarium construction material. There’s glass which is probably the most popular, then acrylic. Aquariums can also be constructed from plywood with a suitable lining. Glass is the material usually targeted when DIY is involved. However, is it possible to use acrylic? The answer is ‘of
Read more →Obtaining fish from the LFS (local fish shop) is really exciting. Maybe the aquarium is being initially stocked, or perhaps an ‘extra’ is being added (I hope that this doesn’t mean overstocking!). Whatever the reason for the purchase, the fish need to be taken to the aquarist’s home. The fish
Read more →At first glance it seems a strange question to be asked. We’re concerned with marine aquariums, so what is meant by ‘home’ and ‘habitat’? It’s pretty obvious that whether the marine aquarium is a reef or fish only system there’s going to be livestock in it. So we need to
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