I am currently using iClear30s and the quality of the replacement coils has been hit or miss lately. I have tried ProTanks in the past and they were great for a while then I started to have the same conssitency issues that I am having with the iClears. Any ideas on a new tank system to try? I am not entirely opposed to trying RBAs but I have never done it before so I would need help with it. I'm also not looking to break the bank with this purchase as I am about to purchase a dna mod in the near future.