Yes, my method is similar, the specimen is swimming in a small pool.
My question is the illumination. I have a powerful led lamp, trying to consrtuct a good homemade brightfield, but the result is not enough good.
Your images are extremely clear.
harisA, thank you for your words. I use coverslip to put the specimen on it; but I am not putting coverslip over the specimen (I normally put a coverslip over the specimen).