I have a 60 gallon tank with 100 lbs of LR and 2 inch sandbed. I need some if on how much flow to get. I have a rio 1700 poiting towards the top to ripple the water all the way across the tank. I Have a rio 600 on the back wall to keep the water moving back there. the tank is only gonna be soft coarls and inverts. do you think this is to little flow and or what should i get for flow. Also does anybody have a pics of 60 gallon tanks with PH in the tank