Re: opinions on the community
#6
What is the pH and hardness of your water?
Your fish are largely incompatible I'm afraid.
Siamese Fighters are solitary and generally not community fish. They're aggressive and do not mix with gouramis- or indeed any fish that they view as being either similar to themselves (long tails) or compete for similar parts of the tank (gouramis).
Tetras all need to be in shoals of 6 or more, and generally the bigger the better. Rasboras and danios are the same. Corydoras are also shoaling fish and need sand as a substrate or their barbels get abraded leaving them open to potentially fatal infections.
Gouramis, Clown Loaches, Corydoras, Kribensis, rasboras, the particular danios and tetras all like soft acidic water and temperatures around 24-26 degrees. SFFs also like it soft and acidic, but rather warmer.
Clown Loaches get far to big for your tank. They are also shoaling fish and get to a foot long or so. You'll need a tank about 6' long or more for them. Depending on the "plec" they get very big too- Common Plecs grow to 18" or so, but there are lots of different species and exactly how large they grow, and what food and other conditions they require depends on the species.
Goldring Butterfly Suckers are a type of Hillstream loach. These need unheated tanks with lots of flow and a supply of algae covered pebbles to feed them. They aren't compatible with the other fish you've chosen for this reason (Gouramis and SFFs, as well as being tropical like tanks with lots of vegetation and relatively little current).
American Flag Fish are aggressive, fin-nipping bullies, especially the males. They like densely planted tanks, hard, alkaline water, and need to be kept with fish that are either robust or fast enough to avoid attention. I wouldn't keep them in tanks with SFFs and Gouramis even if they did like the same conditions. A 240L tank would be ideal for a male and a group of females (if planted densely you could probably have more than one male). However they also don't need heated tanks (although they can be kept in tropical tanks).
A good rule of thumb for stocking is 1cm/2L which would give you space for about 120cm of stock, although you can go over this if your maintenance is good. Once you know what your water parameters are you can narrow down your stock somewhat, but the best advice I can give is to choose a species or two that you like the most and build your tank and community around their needs.
Loaches, Barbs, Minnows & Shrimp! Oh My!