So I've had multiple tanks. Not a newby but completely new to African Cichlids. Tank will be in a 100(if I could have found a 125 I would have just was to good a deal to turn down). So far the plan is only mbuna. And maybe some pictus or synodontis petricolas.(anyone have issues feeding these without the mbunas getting to much protein?) Decor of slate(I want to use black silicone to pre-make caves and different unique shapes) For filtration I'm planning on just one AC 110 with 2 or 3 sponge filters and abiut 1000 gph circulation from the opposite side of the tank from the AC. For light I've been looking at beamswork LEDs or maybe finnex 24/7(so I can control brightness easily). Is there any simmilar priced(~$100) lights that you can control the intensity of the LEDs? For substrate don't want it to deep, and gonna put the first 2 layers of slate down before sand to keep the decor more stable. So I was thinking 20lbs of African cichlid substrate to just help a bit with the buffer, then maybe 30-40 pounds of black sand to mix. What do y'all think? Also what's the best valued 400ish watt heater?