This is my 35 gallon reef tank. I’ve had it for several years. All the corals started out as fragments. There is very little live rock. Most of it is lava rock that now looks like live rock after years of reef led lighting hitting it and copepods moving in. I have one power filter that sits close to the bottom rear of the tank for circulation and one HOB filter. The salinity is 1.023. There is one damsel fish and one reef hermit crab. They have the whole tank to themselves. Show us your tanks!