Certified Seal
Dogs Cats Fish Birds Reptiles Small Pets Pond
CaribSea L.S.M. Live Sulfur Media 1 Gallon
Click to Image Zoom

More Views

  • CaribSea L.S.M. Live Sulfur Media 1 Gallon
  • CaribSea L.S.M. Live Sulfur Media 1 Gallon

CaribSea L.S.M. Live Sulfur Media 1 Gallon

Temporarily Out of Stock: ETA 5-7 business days

Item #: CS0528

Add to Wishlist

Quick Overview

Nitrate reduction? It's not a problem with CaribSea L.S.M. Live Sulfur Media from Pet Store . For aquarists, reducing the level of nitrates in the water is not a very enjoyable task. Keeping nitrate level minimum is not very e...
Product Description

CaribSea L.S.M. Live Sulfur Media 1 Gallon Information

Part #: 528

Nitrate reduction? It's not a problem with CaribSea L.S.M. Live Sulfur Media from Pet Store.

For aquarists, reducing the level of nitrates in the water is not a very enjoyable task. Keeping nitrate level minimum is not very easy, especially if you are an amateur fish-keeper. Aquarists often use protein skimmers to reduce nitrate levels. Protein skimmers do really good in keeping nitrates as low as possible. However, for added protection, aquarists use artificial nitrate reducers and a great way to keep nitrates level low (or even undetectable) is by using CaribSea L.S.M. Live Sulfur Media.

CaribSea L.S.M. Live Sulfur Media is an effective way to reduce nitrates in your aquarium water. Ideal for double chamber reactors, L.S.M. must be used in one reactor and the A.R.M. solution on the other.

How does it work? Simple. Nitrate-reducing bacteria feed in CaribSea L.S.M. Live Sulfur Media. These bacteria convert the nitrates into nitrogen gas. When used together with protein skimmer, CaribSea L.S.M. Live Sulfur Media effectively decreases the level of nitrates in your aquarium, keeping it cleaner, healthier and more balanced. Aquarists swear their tanks have lower nitrate level after L.S.M. treatment!

For your nitrate-reducing needs, use CaribSea L.S.M. Live Sulfur Media. It's a simple but effective way to keep nitrates at bay.

Here is a pure granular elemental sulfur, with sulfur reducing bacteria right on it. This product can be used in a number of ways, and accomplishes the same job of nitrate reduction as our NO-NO3®. This product is ideal for dual chamber reactors, using our A.R.M.® in one reactor and placing the L.S.M.® in another. This results in a system that delivers elevated calcium, and reduced nitrates.

LSM™ is intended for use in experimental sulfur based nitrate reduction equipment or systems. Nitrate and pH test kits are required to fine tune any nitrate reducing equipment. Sulfur based nitrate reducing bacteria require an oxygen depleted environment. Be aware that this process may strongly acidify surrounding water. A typical system employs two separate canisters with a means to control water flow rate through the reactor. The first canister contains the LSM™. The second canister is filled with aragonite to neutralize acidified water and supply calcium ions as a by-product of neutralization. LSM™ can be placed in any oxygen restricted environment. As with any experimental project, we do not recommend putting a significant amount of sea life at immediate risk, nor risk the health of well established systems without a thorough testing of the effluent parameters first.

Note: Nitrate reduction with sulfur may produce an odor. Due to the experimental nature of sulfur based de-nitrification, the manufacturer accepts no responsibility for the use of this product.

Guidelines for LSMTM Use in Reactors and Modified Jaubert Systems:
The most common application for LSMTM would, of course, be in reaction chambers. Before going into the details heres a review of the basic concept of autotrophic sulfur denitrification:

In the reactor, sulfur is a food source for bacteria that also eliminate nitrates by converting them to Nitrogen gas. In time the bacteria break down the elemental sulfur and also create sulphate and hydrogen. Both of these by-products can have a negative impact on pH, by bringing the pH down, so it is important to make sure that the effluent from any sulfur reactor is adjusted back to a pH that is acceptable for a marine system.

The most useful reactor designs have a two chamber design with the first chamber holding the sulfur media and performing the denitrification, while the second chamber is filled with calcium reactor media and adjusts the pH of the effluent back to acceptable levels.

Flow rates:
Because autotrophic bacteria will prefer oxygen over nitrate because of this it is important for the flow through the reactor to be slow enough to deplete oxygen so that it is not present for some length of the column. It should also be noted that design is simplified by having a vertical reactor with water added to the bottom so that the sulfur stays in the reactor as it will have a tendency to crumble as it is consumed.

Initial flow rates tend to be in the 1 liter per hour per liter of sulfur in the reactor. Rates may be adjusted up to about 5 liters per hour ultimately but initially should even be below 1 liter.

Because of the slow flow rates, the calcium reactor media may clog as it breaks down too. A coarse grade reactor media will eliminate this possibility. By following these few, loose guidelines a very simple sulfur reactor can be created.

Volume of reactor:
The volume of the Sulfur reactor should be about 1% the volume of the system if the NO3 levels are below 50 mg/l or 2% in systems where the initial concentration is greater than 50 mg/l.

Modified Jaubert sulfur use:
The use of sulfur in a Jaubert or deep sand bed, (DSB), system is even simpler but may not necessarily always be as successful so care should be taken when considering this usage. The product NO NO3TM may be a safer alternative for this type of use as it is tempered a bit by having aragonite mixed with the sulfur beads. In both syst
+ Display More
- Display Less

CaribSea L.S.M. Live Sulfur Media 1 Gallon Reviews

Average Reviews

Customer Reviews

Very good product Product Review by CARL GREEN (Posted on 2/26/14)

Comments: Doing 20% water changes in my 75Gal reef couldn't lower my nitrates so something had to be done. Wanted to try a BioDenitrator but didn't like the price of the devices. Purchased a new dual chamber calcium reactor for $50 and converted it into a slow drip BioDenitrator. So far this product is doing a great job. Currently using about 1 1/2cups of L.S.M. in one chamber and A.R.M. in the other chamber with no effects on my pH. Just after 12 days I saw a drop in nitrates from 28ppm to about 15-17ppm and dropping with no adverse reactions to tank life or smell of sulfur. Thinking of adding a little more L.S.M. in the second chamber w/less A.R.M.. Can't wait to see the long term effects on my tank with using this product. Would also recommend using a pH monitor with this product.

LIVE SULFUR Product Review by TOM PUTZ (Posted on 11/21/10)


L.S.M. live Product Review by RUSS DASCANIO (Posted on 10/18/10)

Comments: Works like a charm

Sulfur Reactor Product Review by PATRICK ONEILL (Posted on 6/14/10)

Comments: I purchased LSM on a recomendation for use in a Nitrate Reduction Reactor (NRR)
The results, based upon the manufacturer's instructions and use, were as predicted and exceeded my expectations.
The Nitrate level in my 100g South African tank was running at approximately 50ppm while all other noteable parameters were stable and safe. I designed and built a NRR and a Calcium Reactor (CR) using Aragonite (ARM)in two separate chambers for serviceability reasons. The effluent output of the combined systems is 0ppm Nitrate and 8.2pH with a slow and steady reduction of Nitrates within the main tank. I recomend LSM to anyone, salt or fresh water, interested in reducing unhealthy levels of Nitrate. Thank you Marine Depot for the valuable and accurate information by which to purchase this product with confidence. Patrick

LSM SULFER Product Review by JEREMY CAREY (Posted on 2/14/10)


Items Similar to CaribSea L.S.M. Live Sulfur Media 1 Gallon