you should also know:
there is the planted aquarium
and
there is the aquarium with a plant in it
...we sell many (mostly) species of plants
that do fine with normal lighting and no CO2 system
provided the fish species the plants live with
do not consume the plants
(fish make CO2)
I'm definitely an aquarium-with-plants kind of guy. I bought a $20 plant bulb and put maybe $20 worth of low-light plants in my 20 gallon tank. The ones I got are basically weeds. It changes the entire character of the tank to have plants in it, and I love them.
The tank contains about a billion fancy guppies (I started with four- you know how guppies are) and about 2 billion snails (which I didn't put in on purpose- they came with the plants).
The plants are:
Cryptocoryne wendtii (red). These are about a month old, but they're growing very well. They don't seem to mind my low light at all.
Java fern: These have been growing very slowly for about a month, but they are very green and bushy and healthy. These guys won't take root, though- I have to clip them on to rocks with rubber bands because they just drift around the tank. They don't float- they're marginally heavier than the water- but if a fish swims by with too much energy it'll take off.
Some kind of hygrophila- I think it is Hygrophila polysperma. I've had this thing for a year now and it's an incredible weed. It grew slowly until it was 6" or so, and then it took off, filling the aquarium. The only thing I don't like about this is that it spreads by forming these little tiny plants on the surface, and if I let the plant grow up to the surface, in no time at all the water is covered in a carpet of these little tiny plants that are very hard to scoop up- they're so small that they scoot away from nets. From time to time I just chop off huge chunks of it and throw them in the trash.
I don't even know what the last one is. It looks like some kind of anubias. I've only had it for a couple of weeks, but it seems to be growing roots and sprouting leaves and it looks very durable. It's a pretty plant and I think I'm going to like this one a lot.
Plants which haven't done as well:
I also got some glossostigma from Ned, which require a great deal of attention and strong light. Those didn't do well at all. I've found that I like the plants but I don't have the patience to take much care of them. In Ned's shop they were a graceful, swaying carpet which formed a beautiful green mat. In my aquarium they turned stringy and long and got dug up in a couple of days. I wouldn't mind trying again with this one if I get a better light and gentler fish. I want them to look as good in my tank as they looked in his.
![Smile :-)](./images/smilies/icon_smile.gif)
The glossostigma is all dead now.
I have some micro-sword in there too. It seems to be surviving, but it's not thriving. I think the light isn't good enough for it. It's growing tall instead of thick, and it lost the bright green color it had when it was given to me. It's kind of pale looking now, and I'm not sure how it will do. I have a feeling this one will survive but never thrive in this tank.
Finally, I got java moss. I have learned that I hate java moss. It wouldn't take root (in either of my tanks) and it just kept floating around clogging up my filters. Even when I tied it to something, pieces broke off a little at a time. When I finally decided to get rid of it, I had trouble because there were individual strands of it everywhere. Besides, it's kind of ugly- a very dark-green color.
I have put all of these same plants into my 46 gallon tank. It has a 96W 6700K flourescent bulb- much better light than the 20G tank. I have some plants living in it, but they don't do well because I have cichlids in that one. They dig, they eat the plants, and they fight with each other by swimming in these tight little circles, and all this rough play breaks leaves off of all but the strongest plants. Right now in that tank I have:
A tuft of giant hairgrass barely clinging to life.
cryptocorine, which is growing slowly. The fish seem to break leaves off of this one as fast as they grow
A cutting from the hygrophila in the 20g tank. This one has been growing slowly, but I think it is finally reaching the stage now where it is going to take off.
Java fern: This took about six months to take off, but it finally seems to be growing well now.