Hello all, on Monday the 13th this week, I set up a 75 gallon standard aquarium (48" X 18" X 20"). I put in some gravel from my 30 gallon on thursday and yesterday I put in 32 ounces of fritz-zyme 7. It is now Saturday the 18th and I put the first few fish in to start the cycle (I know many people don't like to fish cycle but I change the water many many many times a week to keep the fish healthy as well as add ammonia de-toxifier). The fish I bought today were 6 Giant Danios and 1 Rainbow Shark. Now, while the Danios were like torpedoes eating flake from the surface I noticed the shark was not eating anything. He may have nibbled at a few tiny pieces of flake but has not found nor eating any of the half of an algae wafer I put in for him. He has been right over it multiple times but just ignores it. He is in perfect health with great color and comes up to the glass when I go up to the tank (my desk is right next to it so he is actually watching me now as I type 
). The tank's water parameters are as following Temperature: 75.5-76.5 F, pH: 7.5 and falling, water current: medium/high. My question is, is there something wrong with the shark and if so should I do something, or if not should I just not be concerned?
). The tank's water parameters are as following Temperature: 75.5-76.5 F, pH: 7.5 and falling, water current: medium/high. My question is, is there something wrong with the shark and if so should I do something, or if not should I just not be concerned?
