Yeah same for salts isn't it?
But based on our 9 months tests if you just dose irons a few times a week and not heavily dosing daily than it's not an issue.
However be aware to use heavy iron fertilizers in larger ammount.
Use DTPA instead of Gluconate or ETDA..........[DOUBLEPOST=1406304569][/DOUBLEPOST]
They are usually expert in their field. And if they feel good about it they easily sell it.
Most of our client are happy about it we do use many of them in our showroom and just like Dave Chow we slowly add this into most of our client installations.
I do use them in the past 8 months and this is really good. But still my ealrier comment is valid. This is for someone who knows the basics. As for beginners there will be many other issues to solve and get over on it.
For an advanced person this is really helpful.
In my country some folks did already the DIY version of it. So it is not about it anymore that it is effective or not it is much more about how we can do this at home. 🙂
If you are an expert, well..........then you really are not selling the product because you do not need the product.
A method, or a device, any.........can be made to do very well if you are good to begin with.
I do not think that is a logical argument in support.
Still, if you use a wet/dry filter, then ..............O2 is higher and I have similar results/can make similar claims...
and I clean the filter much less........no water line stains/lime, no device to clean or plug in or added cost.Equipment out of the tank etc
Adding more O2 can be done many ways.
If you use a canister (these are not cheaper than wet/drys comparatively) then you could argue for them and if you do not do water changes much and if you over load the fish stocking.
I am still much more in favor of a decent filter, good water changes ......................basic stuff.
My wet dry filters last for decades. Till I break them myself.
I'll pick one up sometime and test it with the O2 data logger on a reference tank, maybe the 120 or the 70, or the 180, but such small dinky devices on larger tanks, I'll have to see if I can get the largest model or run 2.