Seachem Matrix Bio Media 250ml

Awesome Product! First time using seachem and I now see why everyone raves about it!

Mine has been doing a great job

Good product at a good price.

Seachem...a trusted brand. After having a outdoor koi pond (with bio filtration) in California for many years, we had to move to indoor tanks in New England. However, I never really put much thought into the filter systems that come with todays starter tanks. After having a tank in my daughters room for years (one in which we periodically monitored water properties) we started to struggle to keep some of the fish alive. I decided to take a closer look at our water chemical levels and found we began to struggle with ammonia and nitrates again. It was then that really decided to shift away from the basic carbon filters that come for our specific filter - in which we always seem to throw away established bio filter. I decided that I would try filter padding with Purigen and Matrix - creating a bio filter that I wouldnt toss away each time I replaced the padding. The matrix stones are pumice based, giving them extreme surface area coverage where the bio filter bacteria can become established. I borrowed one of my wifes old nylons to create a flexible bag of matrix stones that was easy to add to the new filter set-up. My only complaint is the powdered dust that is all over the stones when you first open them. Even after a thorough rinsing, the tank became mildly cloudy when the stones were introduced. Within 12 hours that cloudiness was gone. And since using the Purigen/Matrix combo the two tanks have never been more stable and more clear!

I have no idea whether this stuff actually works as it described.

Use this media in all of my hob, canister, all in one/built in filters. Also used it in place of/in addition to live rock in frag tanks.

El mejor material filtrante para acuarios, el artículo vino en la fecha estipulada.

works great!

Matrix is the best biomedia out there, imo. I use it on my 5 gal planted betta tank. Lots of surface area due to its porous composition (lots of microscope images on Google), and you can pack a bunch of it into a small space. The pieces are about the size of small grapes, and with a little rinse to get rid of the dust, you pop em into your filter and forget about them until maintenance. I have 250mL of Matrix sitting in the back of my Fluval Spec V in a nylon media bag under the sponge that came with the tank. I have been fishless cycling for a few weeks, and my tank holds enough bacteria to easily process 3-4 PPM of ammonia in well under 24 hrs. Matrix works, and being a biomedia, it doesnt get easier or better than this. For all you Spec V and Spec III owners out there, I use this with the stock sponge (cut a bit off to shorten), stock ceramic media, and a 100mL bag of Purigen, and it keeps my water filtered and crystal clear.

This is approx. 10mm pieces of pumice which is one type of volcanic rock mined in western USA states. If you live in those areas it’s very inexpensive, but living in eastern areas of USA, shipping can be extremely cost-prohibitive. I use pumice for my succulents (I have amassed an extremely large collection—hundreds). I order it in 3-gallon bags from General Pumice for around $30–the majority of that cost is shipping which is included in the price. That same 3-gallon bag would cost approx. $6 if I lived closer to where it is mined. It comes in a variety of forms—almost powdered tiny granules for making your own DIY exfoliating products (just add it to your body or face wash and viola!) and many other sizes and forms. So if you have a lot of tanks, this will save you a lot of money. I’m not affiliated with the company in any way; I’m just a grateful and loyal customer. In my opinion, these tiny jars are a huge rip-off. It’s a great product, just exorbitantly over priced.