I am beginning to understand your point. If you are telling me that your tanks are constantly running in excess of all the nutrients, meaning algae constantly has all the ferts it could want to bloom and it isn't...
This was an interesting thread to me before but now it just went to another level.
I guess that depends on what you consider excess. I have run levels of ferts that might make you faint. But again, I have to point out that is in the context of a very high light CO2 injected tank.
I can tell you this for certain. I can walk over to my tank right now and dump in another 5 ppm PO4 without hesitation. The ratio will be different, but I guarantee you no algae bloom. I know because I have done it many, many times. If I notice a leading indicator like Pantanal is droopy, I am not shy about boosting things quickly.
I would be shocked, along with what I think is the majority of the hobby, to find out that constant ferts in excess doesn't lead to algae. On the one hand I would be very happy because my life just got a lot easier but on the other hand I would be sad because of all the wasted time toiling over ratios and dosing.
Can you clarify that I am understanding you correctly? Constant macros and micros in excess do not cause algae? (In this scenario we are assuming ample CO2)
I guess that depends on who you follow in the hobby. I follow many world class plant growers, and I would say the notion that excess ferts causes algae is pretty much a thing of the past. Like I said, I have dosed some levels that would make your head spin!
If that is truly the case, I have a lot of testing to do and am indeed incorrect about fert ratios making any difference at all. I am not yet fully convinced as I am a see it to believe it type, but if that is what you are telling me, I will give it a try.
If this is in fact the case what is the point of the tabletop experiment you are doing in the link? Why not continue to use spoons and dose extra?
If this is the case, then in a grow tank without fish, why change water at all? Why not just top of with RO? Why not do fewer water changes and just add heavy mechanical filtration to keep down organics?
Fert ratios are a tricky thing. I don't believe there is some magic ratio that will make everything perfect. Heck, even individual plants have individual needs that vary. So the trick is pleasing as many as you can at one time.
I do believe the elements interact with each other and there are positive and negative associations. Many times we have discussed the following chart...............
But I look at these as broad based relationships. That is you don't want things in terrible excess in one direction or the other. But in reasonable amounts there is wide latitude as to what will work.
As to my tsp experiment, I do like to know what I am dosing into my tank. And once you get to a certain point, you begin to fine tune things to bring out the best in the most species. My dosing is not straight EI, but I guess you could say is based on EI. So I do like tweaking things here and there to see the effect on the tank in general, and sometimes on just an individual plant.
I don't recall who, but someone said they front loaded all their macros at the beginning of the week, and then dosed micros throughout the rest of the week. Again, I am shocked. My tanks would revolt! I have much testing to do in the coming months... I'll be busy.
That be me!
Front load macros daily dose micros for several years now.
Tank is better than ever.
But at the same time, if excess nutrients don't cause algae how come low CO2 causes BBA? The plants are still growing, just slower and the same excess nutrients are in the water...?
BBA is one topic that has been debated to death, and there are loads of opinions out there on what causes it.
IMO, it is not caused by low CO2. Low CO2 is surely a factor, but it is usually in combination with too much organic waste (#1 contributor), too much/too little light, too much/too little flow, and sometimes too low of dosing (unhappy starving plants).
It really requires a holistic approach and knowing everything about a tank that you possibly can, as it can be a combination of different triggers.
But again, it's a long topic and you will find loads of passionate threads here and elsewhere devoted to it.