everl0ng
New member
right now i have a mj1200 for circulation in my tank. it is 20dx20lx24h. should i stay with my one mj1200 or get a second or go with a hydor ph? i just don't want something to cause a sandstorm by being too powerful. i do love how the hydors have the magnet so that there's no need for cords in the water. please give suggestions. it is a 37g, so i am not sure whether to step up circulation or keep what i have since my corals seem to be very happy.