i raised my tig from just over an 1" but the success rate is very small and i did it through a way fellow mfk'r t1karmann recommended to me that was feed it live neons. mine got through up to 100 neons a week for 2 months and that got it up to 7-8" + where it moved onto danio's and then finally it's current food of hikari massivore. it's now around 12-14" and i'd encourage everyone buying one small to do it this way as feeding it on salty foods like prawn or lancefish will usually kill it when small but if you work out the cost of doing that you may as well spend the cash and buy a big one. nowhere near as much fun though!