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"1.5% dosed at 5mls per 10 Gal yields about 2ppm." Sort of said it fairly plainly there, whether they chose to dose that or not is up to them, that is the directions and the label off Seachem as well. Most have already looked this up given the OP's questions and ideas. Either way, more clarity...

Because is cost the same buying the lab stuff, so why would anyone buy it from another hobbyist? Folks have long used 1.5% at 5mls per 10 gal for the 2ppm range for some 7-8 years and more tanks than I could count. Seems fine for all if you use it as directed. I've dosed it 2ppm per day for a...

Purigen is rechargable and seems to be preferred by many for organics and tannin removal. Still, as you can plainly see, there are no negative effects, proven or otherwise about plants and carbon causign any issues either way. This also falsifies the claim about allelopathy somehow causing...

Fish and particularly inverts are much more at risk than plants. 1.5% dosed at 5mls per 10 Gal yields about 2ppm. Toxicity curve is at about 4ppm for critters and drops fast. So double dosing, thinking that more is better..... are BAD ideas. Regards, Tom Barr

EI is meant more for CO2, maybe Excel and cut by 1/3rd. For non CO2: http://www.barrreport.com/showthread.php/2817-Non-CO2-methods Sort of a water column dosing routine, basically about 10X less than EI, dosed once a week, maybe 2-3 x a month etc. But sediment sources are wise eithe rway...

My rational has been after making reference solutions to test and the test, the cost and labor involved, as well as the motivation to test and measure in the first place, it is just easier to do a large water change and dose back, making a "reference solution" for most of the tank that way. I'm...

Common sense should be used with extreme prejudice. No regs on it, try to carry it upright and transport as such. You could use some chain hooks for the back seat and they get latched on there, or I use this same thing on the back of my truck bed. Some wrap the tanks in a towel and lay them in...

Since it is a non CO2 method of water column dosing, this thread would be more appropriate for the given goals. http://www.barrreport.com/showthread.php/2817-Non-CO2-methods If you like Excel: http://www.barrreport.com/showthread.php/4266-Hybrid-methods-fusing-dry-start-excel-with-non-CO2...

I do not think MTS or Black worms are going to help much. Plants will do quite well and export a lot more in much smaller space and look lots better. Example form my home: Looks much better than ANY DBS I've ever seen. Few would disagree. And.......even if you have plan eating fish? Plants...

Actually I have tested them, careful when you assume something about another person. Denitrification is tested via N2O, a reactive by product of the process. See acetylene-based methods. CO2 is rather simple to measure using an IR analyzer. A simple bucket and sediment type and the plant of...

It's much more likely to be CO2 gas evolving from the sediment, not N2 gas. Also, anaerobic sediments are fine.........as long as they are not disturbed for fish etc. Most lake and pond sediments are like this. When they are removed and suspended, then you get fish kills. In aquariums, people...

I think many plant folks that use CO2 gas use water changes mostly as a way to manage ppms/dosing of nutrients without having to test multiple parameters often. I do that, but not to do with waste, more to keep the nutrients are the right range, and also to remove 1-2ft of water so I trim and...

Yes, essentially none for 1-2 years are common. I've bred a lot of fish, a friend in LA area bred discus for that matter, 2 years without any water changes. Can you quantify those growth inhibiting hormone and cite some references that we can rely on? How much growth inhibition occurs in the...

In the context of a planted tank, this is woefully incorrect. The non CO2 method is one such method and has been extremely successful for over 2 decades. I've bred a number of fish in such tanks, so called sensitive shrimp etc etc. A few examples: What do you have that falsifies these...

Does a lid reduce O2? Yes. Increase CO2? Some, not a lot. Regards, Tom Barr

Yes. Regards, Tom Barr

I agree, there's zero need and actually you will run low N anyway, so less denitrification, the better. A high plant to fish ratio will always run lean on N as a rule. Partly due to denitrification. So water changes will be not required. Plants have far far more surface area and uptake of not...

If it does not challenge you or make you think, not a good article. Just a feel good escape. Good careful CO2 monitoring is the hardest thing in the planted hobby. Lower but good quality light will help a long ways to making management of CO2 EASIER. More light, makes it hard/more difficult to...

These are decent if you have straight pins, really pops the red colors out. Well used in the planted circles for a number of years now. I've gone all T5's, but still have a few 8800K and these, but no longer use them after selling off most of the PC lights. More a color preference to you vs...

Look at all this algae form these bulbs: 10000K grow plants fine, so do 6700K. You have bigger issue than color temps. CO2........you need to stop messing with light and start thinking more about mastering CO2. 130W on a 55 gal tank is fine etc, a bit high actually, but you should REALLY...