About Stock

Every coral that enters your home is a potential hitchhiker taxi. Flatworms, red bugs, nudibranchs, vermetid snails and aiptasia anemones all travel well on live rock and frag plugs, and none of them announce themselves until they've settled in and started breeding. A dip is cheap insurance against a problem that can otherwise take months to unwind.Why dipping matters more than people thinkPests rarely show up the day a coral arrives. Montipora eating flatworms can hide in the skeleton for a week before symptoms appear. Red bugs on Acropora are almost invisible until populations explode and tissue starts receding at...

Chaetomorpha, usually just called chaeto, is a tangled mass of thin green filaments that looks a bit like fine steel wool. It does not attach to rock or send out runners the way nuisance algae does. Instead it grows as a loose, tumbling ball, which is exactly why it works so well in a refugium. Water flows through the mass, the algae strips out dissolved nutrients as it grows, and you remove that growth on a schedule instead of watching it accumulate on your display rock.Why Reefers Grow ItNitrate and phosphate build up in every reef system from feeding, fish...

New reef keepers often buy every test kit on the shelf and then test everything every day, which is a fast way to burn through reagents and second-guess a tank that was actually fine. The better approach is knowing which parameters drive coral health, which ones drift slowly, and which ones only need checking when something looks off.The parameters that actually matterFor a coral tank with any amount of stony coral, five numbers do most of the work: alkalinity (KH), calcium, magnesium, nitrate and phosphate. Everything else, from pH to salinity to trace elements, either follows these or matters far...

Every reef keeper eventually hits the same wall. Calcium and alkalinity drift because corals are pulling minerals out of the water around the clock, but nobody wants to stand at the tank with a syringe every evening. A dosing pump solves that by moving small, repeated volumes of liquid on a schedule you set once and then mostly ignore. Kamoer has become one of the more common names on Australian reef shelves because the pumps are quiet, reasonably compact, and easy to wire into a wider automation setup.What a Dosing Pump Actually DoesInside the unit is a peristaltic pump head....

Reef lighting arguments usually boil down to one question: can the fixture push enough PAR to the substrate for SPS without cooking the softies up top? The AI Hydra 32 HD Black is built around solving exactly that problem, and it does it with a spread of individually addressable diode colours rather than one blunt white LED array.PAR output from surface to substrateMounted around 20 to 25cm above the water line on a standard 4 to 6 foot reef tank, a single Hydra 32 HD can deliver PAR readings in the 400 to 600 range at the surface, dropping to...