I believe 1 gallon is about 4 liters? What are the measurements of your tanks (inches or cms)?
If those sizes listed in your sig are true, then sorry, but I too think they're overcrowded. Furthermore, some of your fish are too big for your tanks. For example, the red-tailed shark and the plec will outgrow a 10g quickly. I wouldn't put them in anything smaller than 55g (JMO though, I'm sure people have different ideas on the minimum sizes. I do know that 10g is too small for them.) The clown loaches and the plec there are too big for a 25g as well.