So I have a question, there is this Fluval FX4 filter canister designed for 175 gal tanks on sale , and I have a 75gal tank medium stocked but with high nitrates. Is there such thing as overkill for a filter? What are the downsides or the benefits? For the tank I have an appropriate protein skimmer, hanging filter and a Fluval 207 which is smaller for that tank. I’ll like to replace the Fluval 207 with the FX4 which with the deal won’t be much money but I don’t know if having too big of a filter a bad thing