Ive got a loud pump powering there 8" air stones, and the FX5 water outlet, they are hanging close to the top, Im working on a fix without cutting the acrylic. Im also going to close in the stand, its open right now with camo skirting.
Love the heavy stock. Hifin sharks are very slow eaters. Going to be hard to compete against those monsters. I have them in ponds and they're almost like a filter fish screening the water for bits of food and bugs. Maybe with the heavy feeding it will generate enough little white worms for it to eat.