Speaking from experience Solcielo? NinHao, I've tried both methods and DSM has a slight edge. My recommendation is if you have a scape with some elevation/slope to it, do DSM and don't flood till the HC is rooted and spreading. Another factor to consider is your source of HC. If you get it from another member's tank in submersed form, it would probably be better to start it that way. Both high light levels (see threads on PAR) and CO2 are keys for HC success in my tanks. The last piece of advice is to stay away from animals that are known substrate diggers (cichlids, corys), unless you like flying HC carpets. You are more than welcome to visit my tank journals in this forum for more details. Hope that helps & good luck. :bounce:I don't recommend DSM for HC. It carpets faster submersed.
Really? Do you have any evidence? Pics, tank journals in the forum of your tanks anywhere? Now your aligning w/ Tom Barr? Before it was critiquing w/ Amano? Come on, show us some evidence of this "experience"?I'm speaking from my experience. Under ideal submersed conditions (w/CO2 + ferts), HC will spread quickly within a few days. But terrestrially, it barely does anything in the same amount of time, probably because it's developing its root structure. Don't DSM HC if you'll be adding CO2. If not, then DSM would be a great choice. This is Tom Barr's advice and mine.
^ what the master said. Agree totally. I've had zero problems growing it submersed. Like tom said, co2 is key. The stuff I used was grown emersed, so when I planted it, I just turned the co2 up way high and it took off like a rocket.I feel it does better if you pack the tank with a lot of HC from the start, do the water changes, say 50-80% 2-3x a week for the first month.
DSM is something I promoted and came up with and where it really helps is with a new non CO2/carbon enriched tank with growth is so slow already.
But I think normal set ups work better using CO2 with HC and most foreground plants. DSM will not save anyone from poor aquarium once you fill up the tank. But the DSM helps folks learn to grow plants emergently and if they only have a pot or two of the plant available, OR if they want to cycle their tank before filling it up or need/want to mineralize their soil(say if they use top soil, loam etc). Might as well do that inside the tank since you have to wait a 2-4 weeks anyhow.
So there are a few good reasons to use DSM, but I do not/would not use it for most carpeting plans for HC. End results will be the same either way.
CO2 is the issue for most, for those lush nice carpets you see? CO2, CO2 and CO2.
A bit off topic.. I browse and lurk a lot on this and other forums. Seems like a group of people are basically harassing socielo, even when he's giving sound advice or an opinion when the OP asks for one. Even if he has no credibility, harassing someone at every turn makes a person look petty, and to me they lose credibility themselves.Really? Do you have any evidence? Pics, tank journals in the forum of your tanks anywhere? Now your aligning w/ Tom Barr? Before it was critiquing w/ Amano? Come on, show us some evidence of this "experience"?
That is probably correct, emersed plants weigh more, and might pack on the weight faster that submersed plants. This is due to the structural changes I mentioned in my previous post.Emegrent plants grow fast actually in virtually all cases as a function of dry weight biomass, but to the aquarist, the lighter fluffy submersed growth can expand and has no need for support due to the water's buoyancy.