I assume u mean pump as in power grow. If that's he case the. best way is to covert it to pellets. After that u just keep the water clean, water Change every other day, 85 degrees temp, a slight current and multiple feedings. The clean water promoted growth and the current/warm water are for metabolism and exercise. And pellets are probably the most nutritious food source for them. Let's see if that helped
Imo, the fastest way to pump in terms of length and not grit is 24/7 live feeders and everyday 20% water change. Pellets add more girt then length imo. Water changes help get rid of anti growth hormones that fish releases. From 2 inch to 6 inch in 2 mths easy. But u run a risk feeding live feeders so make sure you have taken measures to safe guard ur fish if u r going to take that route.
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