I have a marineland penguin 150 biowheel. 25 percent water change per week. I know my tank is pretty well stocked but it could hold one more smaller fish.
5 inches? Wow I was told 3 inches for the loaches. I agree though it's pretty well stocked. And with the rainbow shark, by the time it gets that big my plan was to upgrade to a large tank once we buy a house. I want to go way up like around 100 gallons.
Haha here's a pic taken from my phone a minute ago. My beautiful rainbow shark playing in the sand.