Most low light plants (anubias, java fern, java moss, etc.) don't require much work at all, but they do require some decent lighting and some "food" here and there. The problem is that LED fixtures can either be for display purposes or marketed for plants and/or corals. Unless you get a fixture that is the latter, your plant options are very limited and you'll see very little grow at all.
The Bichir may be fine, but at full adult size I'd be inclined to upgrade to a larger tank with more width at least. People over at MonsterFishKeepers.com (one of Aquaria Central's sister sites) keep these types of fish and may be better to ask. A 55 gallon is only 12" wide, so it's not a good tank for fish that get to around that length and longer. The angel and raphael can fit for sure, but the others not so much.
How do you treat the water? If you're on city water you would want something that covers both chlorine and chloramines unless you are absolutely sure your water isn't treated with both. Chlorines can off gas but chloramines wont, which is why they are being used more often.
The Bichir may be fine, but at full adult size I'd be inclined to upgrade to a larger tank with more width at least. People over at MonsterFishKeepers.com (one of Aquaria Central's sister sites) keep these types of fish and may be better to ask. A 55 gallon is only 12" wide, so it's not a good tank for fish that get to around that length and longer. The angel and raphael can fit for sure, but the others not so much.
How do you treat the water? If you're on city water you would want something that covers both chlorine and chloramines unless you are absolutely sure your water isn't treated with both. Chlorines can off gas but chloramines wont, which is why they are being used more often.