the only filtration i use on my 125 gallon reef is a 20 gallon weed tank with a 6500 halide 175watt that runs 24/7 i am looking to cut the cost of running it since even the 6500k bulbs are spendy since they need to be replace every 4 months. what is the cheapest bulb i can run for grown weeds and what must be 10,000 bristle worms in there, will mercury Vapor bulbs work?
thanks jeff
thanks jeff
