I recently setup a 75G freshwater tank and was sold an inadequate pump (Fluval 107). I cycle the tank for 4 weeks before adding fish. I VERY slowly started to populate the tank @ 8 weeks, and realized the inadequacy. I just upgraded to a Fluval 407. Yes, I am mortified and embarrassed by my stupidity. Judgement deserved.
The 407 intake valve is noticeably larger. I have very small baby rice fish and am concerned they will be in danger. My question: Can I keep the smaller 107 valve/tubing on the 407 pump for now until the babies are larger? or what is recommended?