Reddit mentions of Marineland Double Bright LED Light, 18- to 24-Inch

I would highly suggest you stay away from the integrated kit approach and buy components. As someone currently trying to overcome an Eclipse system, the burdens far outweigh the benefit of integrations and ease. There's more than enough on getting adequate components here, and I would be happy to help you out with the decision, as would others.

Seeing as how you (thankfully) seem to like to take your time and do this right, I offer you some suggestions:

• Whatever tank you want. They're not going to have the greatest selection at Petsmart, but if you find something you like, get it. There's other places online that will ship the tank, but this is probably your best bet to get locally. Though the LFS isn't stocked very well, they might have a number of respectable tanks. Make this decision count-- you will be stuck with it for a long long time, and the ability for your tank to grow with your tools/abilities is crucial.
  
  
• Just pony up the money and get an Eheim Classic. For a 20G, you'll probably want to get this one. If you're getting anything larger than a desktop tank (and, BTW, that's a pretty good one), you'll need a real filter. This may seem excessive, but the dainty POS filters that come in kits ALWAYS wind up biting you in the ass. There are people here that are still using the same Eheim Classic that they purchased 15 years ago. It's a standard for a reason-- it's effective and reliable. Pay for it once and you'll never have to buy another unless you really move up in size. If you really don't want to go that expensive, the best bet is to stick with an Aquaclear filter. For the price, these things do a bang-up job!
  
  
• Just don't skimp on a heater. This will do you well, and it's not too expensive. You don't want your fish either roasting to death or accidentally freezing in the middle of winter. Hagen is a good brand to go to here.
  
  
• LED lights these days are great, and have hit a point where the ROI is seen far earlier than previously, and I'm talking about a year. When you get fluorescent tube fixtures, you use more power and have to replace the lights at least every year, and some replace them every 6mo. It depends on how much light you need, but again, I feel you need to recognize that you will grow with this tank, and buying a lighting system now that is cheaper but unable to grow plants will wind up costing you way more in the long run than just getting an LED fixture for 60% more that will last you years and require very little money after the initial purchase. For a first-time tank, I'd suggest a Marineland Singlebright if you really never envision yourself growing plants (which is half the fun in a tank these days), or a Marineland Doublebright if you'd like to grow plants and want an easy, cheaper option now. Know that those two fixtures are the lower end of the LED lighting bars, and you would do well with something like an Ecoxotic Stunner, where you can start with a fixture or two and then add on to the circuit later when you want more light for more plants. Also note the size of all of these fixtures have to be in line with the size of your tank-- there's no universal size.
  
  
• Note, also, that if your LFS sucks in the stock department, and Petco irks you as much as a lot of people here, there's many places where you can order fish and plants online. I haven't heard any horror stories with the big guys, so maybe check them out. Unfortunately, my LFS's are great, so I've never had to resort to these means. I've heard good things about aquabid, and really, you should join plantedtank.net and see what you can find either locally or on the buy/sell/trade forum. Also, joining a local aquatic org can open you up to a ton of CHEAP possibilities.
  
  Good luck. There's lot to research and plan, as well as to spend on, but getting a good setup is so rewarding and relaxing, that it pays back in spades.

I don't have any canister filters -- mine are all HOB (Hang On Back), and my favorite brand by far is Aquaclear. Their smallest is this 20 gallon filter. I like it because it is extremely simple to assemble and clean, and if you're looking to have a planted tank, you can leave out the carbon packet entirely (if you choose). Plus, it's clear acrylic so you can see what's going on in there (and if any fish happen to have swum into it!)

I have upgraded from my standard hoods with crappy lights to glass canopies with Marineland double-bright LEDS. I do NOT recommend having the glass top shipped to you -- they are available at PetSmarts and some Petcos, and are relatively inexpensive. Paired with the LED lights, the effect is just stunning compared with standard fluorescent lighting.

I have these lights on a 20g and 29g and they grow plants quite well (mostly low-light plants). In a 10g, they will be even more effective because you're not trying to get the light to reach into such a deep tank.

One more thing I'd recommend that hasn't been mentioned yet is your substrate. I strongly recommend Eco-Complete planted substrate. It's like potting soil especially for planted aquariums. I don't have to rinse it at all (like another one you'll find in stores called Flourite), and plants love it. You can cap it with sand or gravel, or just plant straight into it.

The great thing about a 10g tank is that it doesn't cost very much to "furnish" it. The challenge is that there is less margin for error, and you'll want to keep a close eye on your water quality as you introduce fish and get things stabilized.

And one last thing, since you're a beginner and I swore I would try to help others avoid my mistakes: DON'T BUY THE PLANTS IN THE PLASTIC TUBES!! There are a few exceptions to this, but you need to know that most of the plants you find in the plastic tubes at Petco or Petsmart or elsewhere are not truly aquatic plants. They will rot away in your tank in a matter of weeks and you will feel like you have done something wrong. Bamboo and dracaena are also NOT aquatic plants (even though they are all over the place in pet store aquariums) and will rot eventually.

When you're ready for plants, come back for ideas and recommendations and plan to do lots of homework if you don't want to lost money killing plants. :-) (Speaking from LOTS of experience on that one...)

Otocinclus Catfish are small algae eating armored catfish that get about 2 inches long. They are shy, peaceful fish that eat algae. You can compare them to a dwarf pleco pretty much.
There is no need to QT plants and I'm not sure what you mean by which way the stems will grow out from. The only thing I can think of is that you're asking which way you should plant the seeds? Plants always grow towards the light, so you should have no problems there. I would recommend starting with plants that are already grown though. This way, even if you have low lighting, they'll be a decent size and you won't have to wait ages for them to grow.

I see you have new questions! Here we go:

• Aqueon Versa top lids will fit pretty much any tank. If you get a standard 10g you can order this and it will work fine for you. As for lighting, I use this. It grows my plants ridiculously fast and also has blue lights for nighttime use. It as adjustable "feet" so it's guaranteed to fit your aquarium.
  
• I would suggest a Aquaclear 20 or Marineland Filter for your tank. Aquaclear is pretty much the best thing ever. If you're worried about flow, there is a slide option on the top that will reduce the amount of water coming out. You can set it to whatever you like.
  
• Tannins are a compound found in plants, this will not hurt your fish at all. However, if not removed, the tannins will color your water yellow. I haven't seen pre-soaked driftwood in petsmart/petco. You can try ordering it online and simply boiling it or soaking for a few weeks to get the tannins out.
  
• I make bullet points by clicking the bullets option above the comment box, this may be a feature of reddit RES though. You can make bullets simply by typing * and putting a space behind it.

This one?

Marineland Double Bright LED Light, 18- to 24-Inch https://www.amazon.com/dp/B00325575S/ref=cm_sw_r_udp_awd_t628tb1JN4ZN4

I've been looking at this one and the fugeray planted+. Can't make a decision.

This is the light I have. Is it too bright?

Are those tanks 24" deep and 17" high? If they are only 17" high, it should be fairly easy to get medium light with the Marineland Double Bright or Finnex FugeRay LED fixtures. The Marineland can be easily modified by connecting two sets and doubling its length. Not sure about the Finnex, may need to suspend it for the 140g. If the aquariums are 24" high, you'll need something more powerful like a Finnex Ray2, DIY LED or several T5HO.

Here's a handy reference for general light levels. If your tanks really are 24" deep, you'll need to suspend the lights above the tank to spread the light across the breadth of the tank. LEDs are a different beast and it's difficult to tell just how much light you'll get depending on how they are setup, but high quality LED fixtures are generally comparable to a pair of T5HO.

As for filters, the Eheim Classic 2217 or Fluval 406 canister filters should work for the 60g depending on the bio-load. It's generally best to get a filter that is rated for twice your tanks volume.

I'd highly recommend considering a wet-dry sump for the 140g since it will be much cheaper and more effective than any comparable canister.

My light stays on for 6-8 hours a day.

I bought a small LED and intergrated it into the old cover of mine, but these might work for your situation!

This one can sit over an open tank:
http://www.amazon.com/Marineland-Double-Bright-Light-24-Inch/dp/B00325575S/ref=sr_1_9?ie=UTF8&qid=1416409662&sr=8-9&keywords=fish+tank+light

Even less coverage:

http://www.amazon.com/Zitrades-Aquarium-Light-Flexible-48led/dp/B00GXYAP4I/ref=sr_1_5?ie=UTF8&qid=1416409662&sr=8-5&keywords=fish+tank+light

http://www.amazon.com/Marineland-Double-Bright-18-Inch-24-Inch/dp/B00325575S/ref=sr_1_2?s=pet-supplies&ie=UTF8&qid=1394154555&sr=1-2&keywords=aquarium+led+light

That's what I was looking at.

EDIT: forgot to post the link in my earlier comment. Sorry