Originally Posted by Inga
First thing I notice about your stocking list is only 1 loach. I am far far from being an expert but I have heard over and over again that loaches need to be in groups. They have a social structure. I am guessing some of the loach people will come on soon and maybe encourage you to get a few more of the same species of loach.
Welcome to the forum! Can't wait to see pictures of your tanks and hear much more about your fish. Be careful of this addiction, it is crazy how it grows. I have 2 tanks also and am forever buying more stuff.
Dojo loaches can do fine solo, but they are a "temperate" species and prefer cooler water than other "tropical" fish. They also grow larger than a 20 gl can comfortably accomodate this type of loach. Cheerfulmelody (great user name!), maybe you can take a look at the profile for this fish and positively ID the loach you have?
Welcome to TFK, we're glad you joined us!