To go back to your original topic,
the internet is filled with alot of information and unfortunately "mis"information. It can get confusing since different sources will provide different sets of ideal conditions for different species of plants and fish, etc.
To slightly ease some of the confusion, if you are interested in starting a live planted aquarium, welcome and YES YOU CAN!
1. I suggest you plan this journey starting with a LOW-TECH setup. Don't worry about the details yet; just realize this is your initial objective.
2. I suggest you consider if you would like to order all your supplies online or go the route of not only supporting (and learning from) a local pet (aquarium) supply shop nearby. You need to get supplies somewhere and while you can get anything you want online, when starting out, sometimes it helps to learn bits and pieces as you go at a local supply shop even if you do have to pay retail prices. Think of this as supporting local business and also learning from the owner or manager that may have alot of experience managing multiple aquariums with a variety of different filtration systems, chemicals, vendors, tanks, plants, fish, diseases, etc. etc. and you may be able to gain alot of feedback based upon what you are looking to do on your budget.
3. I suggest you also get a reference book(s) from authorities in the field and learn about the pH / KH / CO2 relationship among many other topics as well as for seeing varieties of plants and fish and things to watch out for. For example, I own Sunken Gardens: A Step-by-Step Guide to Planting Freshwater Aquariums by Karen A. Randall. I also have Encyclopedia of Aquarium & Pond Fish by David Alderton. I received these as XMas gifts last year and I refer to them from time to time. There are many great books out there which can be a reference to help you get started and give you ideas.
4. A local supply shop should be able to advise you on ideas of recommended equipment and supplies and you can compare it to other ideas other hobbyists have.
5. In general, get the tank that has the look you like but is also maintainable when it comes to cleaning the substrate.
6. When your initial ideas come together, get some low-tech plants such as Java Ferns, Anuibias, among others, get a Test kit that can measure pH, Ammonia, Nitrate and Nitrite. It is great to also have a KH/GH test kit as well to start. Test the water at your home and baseline it. Find out if you may wish to get other water such as Reverse Osmosis water and / or mix it with your home tap water. There are so many You Tube videos in which you can see different varieties of plants and fish and setting them up. Do not follow advice soley on one person's You Tube video but base ultimate advice when seeing certain information relayed consistently amongst several authorities that seem to agree. This can help with the confusion.
7. In time with patience, you can learn to be just like a gardener of your planted tank and make enhancements over time as you will find out what works and what might not. It can be a fun hobby and something to enjoy. After a bit of time, introduce fish friends that form a symbiotic relationship with the plants in which each benefits from the others.
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