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- Aug 12, 2018
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I have an existing 37 gallon tank. I have been using a Seachem Tidal 110 HOB filter. I am having challenges with maintaining parameters such as pH. I am considering adding a sump down in the stand. However, I have 2 options that I am considering.... 1) I already have HOB overflow boxes not being used, CPR which requires a aqualifter pump or other pump to maintain a siphon or a Eshoppe PF 800. 2) Order a internal/external overflow (Eshoppe Eclipse M) and somehow drill the existing tank. The con is dealing with an existing tank. The pro is having a reliable overflow. Option 1 has a higher potential for leaking outside of the system. I have read threads that some have not had any problems. My life dark cloud would say that I would have a failure. Your thoughts and opinions would be appreciated.