Hi everyone, I just purchased a pair of GBR's today and wanted to know if anyone has any good tips for breeding them. They are currently in my community tank with some discus and clown loaches. I'm planning on moving them into a 54L by themselves once the tank is fully cycled. Would this be sufficient? I also have a 150L which is free at the moment. What sort of filter would be good? I was thinking a sponge filter for the 54L? I was also considering using oak leaves to lower the ph a little, my tap water is 7.2, thoughts? I have seen some people use bare bottom tanks and others using fine gravel? Sorry for all the questions, any help appreciate.