Not doubting you at all, but here in the states 5l of substrat pro goes from anywhere from $54.99 to $90.00. Pond matrix goes for $24.99 a gallon(about 4l).1. expensive per volume of media/ In the UK a litre of matrix is around £16-£17 and substrate pro is £12-£14,how is that more expensive per voloume.Yes I am well aware that seachem say you only need 500 ml per 200l of water,How can seachem say such a thing without knowing the stocking type of setup and various other variables.
2. Needs to be replaced according to eheim/I have eheim media that is over 8 years old and still doing fine,I think it is more a marketing thing re replacment.
3 has not been shown to colonize anerobic bacteria to be effective in nitrate reduction./The only people I have seen stating this is seachem with a study that they commissioned which said there media was the best and had more surface area than any of the others and that it had the right size pores for anerobic bacteria.I would be interested to see anyone that has used matrix pro for the purpose of nitrate reduction in a canister filter setup
4 clogs faster especially if you follow eheim filtration setup in canisters./how long do you go between cleaning your filters? I clean my eheim 2078e once every month and I have not noticed any reduction in flow due to media clogging.
It's still a good media on smaller setups, I would class it in the same boat as bio max.
Most people consider substrate pro to be one of the best media's available,and there are a fair few eheims running eheim media that have no problems at all.I would imagine that if there media was only good on smaller setup there would be a lot of people with problems with water parameters because of using eheim media.
I have personally used eheim media for as long as I have been keeping fish and have never had any problems with my water parameters in that time.
Matrix can only act as a denitrifier if used in a slow flow reactor (under 100gph) otherwise you will not get any anaerobic denitrification say in a high flow canister filter. I like seachem matrix but you can't make orange juice out of poodles.I could go on and on and answer all your replies and show evidence to correct what you have said but that would just be stupid as the whole point is to help each other. The truth is their is nothing wrong with substrate pro, it's just that there are better options available. If you do your own search you will find what I am saying is factual.
Poojuice lol.Matrix can only act as a denitrifier if used in a slow flow reactor (under 100gph) otherwise you will not get any anaerobic denitrification say in a high flow canister filter. I like seachem matrix but you can't make orange juice out of poodles.
This is one of the things I was trying to get at in my previous post,I have seen or heard no eveidence that matrix pro will perform the function of converting nitrate to nitrogen,in a canister/sump filter setup, as seachem state it will.If rhodes has any evidence then I would genuinly be interested to see it as I am sure many others would be.I don't care what Seachem says, you will not be able to grow anaerobic bacteria in any sump or canister filter to consume nitrates. I've yet to see it happen in the real world. If it only it were that easy. There's a reason people still rely on algae scrubbers and denitrators to reduce nitrates. If you REALLY could reduce nitrates by using a certain type of media, then we'd all have 0 nitrates. But you can't, so we don't
You may want to have a look at pumice gravel or crushed pumice,if available, as it has a huge surface area as it contains lots of voids and internal structure,In fact matrix has always look very similar to pumice gravel to me.Was thinking about using Aqua clay (clay balls, from local nursery), nylon pot scrubbers, Seachem Matrix, Eheim Subsrat Pro, Eheim mechPro, Jap mat. dacron, hagen/fluval bio max, mr aqua porous rings and biohome if i can get any lol