How much rock should I buy?
If Marco Rocks will be used as your primary biological filtration, the rule of thumb is 1.5 Lbs per gallon. However Marco Rocks being so porous and being shipped dry will take on any where from 25-40% of it’s weight once wet, because of this we recommend 1 Lb / gallon.
If Marco Rocks will not be your primary Bio filter, We would recommend that you let whatever look is pleasing be your guide. (consider Marco Rocks Cherry Picks)
Can I add rock right into my established tank?
We do not recommend our rock or any other rock right into an established tank without testing first.
However you will find our Key Largo rock 100% free of organics or "pre cured" this makes it safe to tank in an established system without fear of an ammonia spike.
What is a cycle and how do I cycle my rock?
Cycle most often refers to one of two things with regard to live rock or base rock.
a)The amount of time before your rock can act as a biological filter
b)The amount of time before dried organic material and die off is harmless
The answer to each is one in the same, when cycling your Marco Rocks simply add a cup of live sand and a small amount of live rock from an established tank to your tank. The ammonia being produced by the trapped organic material in your new dry rock will feed the beneficial bacteria and organisms as they grow in numbers and colonize your new rock (We use and recommend a nitrifying bacteria product by Fritz (turbo start 900) to help boost this). During this time you should monitor ammonia, nitrite and nitrate. You will first see ammonia spike, then nitrite and finally nitrate. Once you see ammonia and nitrite stable at -0- or very near -0- and nitrate on a steady decline, your rock is considered “cycled”. During this cycle time we recommend frequent water changes, aggressive skimming and turbulent water flow.
How much rock will I get in a 25# or 50# box or Marco rocks?
Unlike many live rock trans shippers we only sell net weight. This means if you pay for 50 pounds of rock you receive 50 pounds of rock. I wouldn’t put wet cardboard into my reef and would never ask you to pay for it when buying something for yours.
Do you ship to Canada and other countries?
Yes we ship UPS ground and can ship into most countries,
if you don’t see an option for your country listed at check out just email us for a quote.
Thanks for choosing Marco Rocks