Seachem Matrix Bio Media 250ml

I have only had this for a month or two, but after destroying our tanks eco system during an attempt to get rid of snails, it has been amazing. For several months, the ecosystem was struggling to cycle correctly. We lost several fish, one at a time, until this purchase. Since adding the Seachem Matrix, the water is clearer, the fish are more lively and colorful. Overall its a great product and maintenance is easy, just rinse rocks off and reuse.

My African cichlids feel like they are home

Not as much as I invisioned. Barely made a single layer in my external aquarium filter bucket.

I have a fluval c3 filter, I have always bought the fluval filters and bio media. After some research I decided to give this a shot to replace my cnodes. You dont want to change all the nodes out at once, you want to mix some of this in with your old ones to keep the beneficial organisms. I waited to write a review to so how this performed vs fluval cnodes and all I can say is wow. I thought my water was clear before but after about two hours of changing this out it was super clear.

The beneficial bacteria colonized this media in no time. I replaced my old biomedia with this when I moved my tank and have had no ammonia, nitrate or nitrite detections since. My plants help out as well but I would definitely buy this again as long as the price is right.

The bio-medium is little volcanic-type rocks, large pea size. I’m using about half the container (250ml, so about 125ml). I’ve put the rocks into a bag, purchased separately, that fits my filter. My tank is 15 gallons and my filter runs at 200 gallons an hour (sounds crazy) so the rocks get a lot of flow. When I switched to this brand, I left my old bio-medium in the tank for about a week, so the bacteria would populate the new medium. My ammonia and nitrite are running at zero. I rinse the bag of rocks about once a week, scrubbing it between my hands to clear the algae. The rocks don’t get clogged, so I haven’t had to change them out for fresh ones. It takes time to build the bacteria population, and it’s important to keep something in your aquarium where the little creatures can live. In the photo, I’ve layered a bag of eggshells on top of the Matrix. (The eggshells raise the pH.)

just pumice stone.

Best filtration media you can use IMO (and the research seems to back this statement up). Particularly if you have a canister filter (because of the anaerobic possibilities), although it works fine with a HOB filter so long as it has space to fit enough of this rather large media.

I dont have numbers or proof but I use this as my biological media with sponges. Many people swear by it so that is why I chose it. Natural as well.

Excelente me llegó rápido es un frasco que contiene 250ml, ya lo tengo funcionando en mi pecera