I have done the co2 untill my fish are sick test a couple of times in the past month just to make sure that was good. TI have been dealing with gda/gsa for quite some time in this tank, this has me thinking that there is a fert excess causing another fert deficiency. Im not too good when it comes to chemical properties but I think these guys are on to something over at APC.
http://www.aquaticplantcentral.com/...12-cant-figure-out-deficiency.html#post536269
Thanks for the input.![]()
The blind leading the blind?
I doubt they know much about allocation of carbon in aquatic plants.
It's far more likely and far more significant than any other "nutrient".
You are welcomed to chase your tail.
I've stated the issue, I've also showed without a doubt that the excess or other nutrient related issues CANNOT possibly be the cause in and of themselves, done it many times, in many tanks, so have many others.
Ca, Mg, K+ ratios, balances...........this is complete baloney/rubbish.
I've never seen any correlation in plant health, stunting, algae in a huge range for each of these, 50ppm ranges for each(see? Hard data over time on multiple aquariums). Where was my GDA? Why have I been able to have severla tanks, but only got GDA that lasted till I allowed the plants to fill in and adjusted the CO2? Then was gone?
Tap and Mg/Ca/K+ never changed.
I've done this and tested this several times starting around 2000.
I've never seen any cases where these other folks had any reference control to date, wonder why?
How can they test without one?
Hummmm..........
I recently took on client who'd had GDA for 1 year, lowered the light(what'd this do? It did NOT lower their K+/Ca/Mg) and in a week, it was gone, no other changes where needed, planted grew better, healthier, healthier fish etc.
What might reducing the light do?
What demand by plants would this reduce first and foremost?
It is not on any "deficiency chart" BTW.
This is not personal ill will or anything or the sort etc.........but it is about how you make a decision and use logic, not just belief.
It' is not an easy thing to come to terms with, but you will be much wiser if you can. But then we forget and have to reconfirm and be aware of later on.........most of us go through this process. I have, many have.
Address CO2, this can be by reduction in light intensity(several ways to do this). Be careful with it, adjust slow and methodically.
I think several have already mentioned these issues, but you have assumed that your assumptions are infallible(never the case). Who can argue with that??:lipssealedsmilie:
I never assume my CO2 is perfect.
I learned my lesson, doubted, been back and forth, but now I know.
It is good to learn from experience, as long as it's not your own.
At this point, I think you will have to go down this hard road, mess with algae, rather than sticking to plant horticulture.
Maybe you will get some correlation, I'm sure you will find some if you keep changing things eventually.........but it implies nothing about cause.
CO2 is hardly some simple thing, and light plays a massive factor.
Hopefully you will figure this out.
Here's a much better link to your issue than any mumbo off APC:
http://www.tropica.com/article.asp?type=aquaristic&id=142
Read it a few times and read it carefully.
Regards,
Tom Barr