I have a 90 gallon setup, drilled tank with 30 gallon sump. I've been running it as a freshwater as I'm not sure what to do with my fish. Hoping to convert to saltwater soon. Can I run a fish only setup with bio balls and gradually add live rock? Is it difficult to maintain with bio balls? The rock is a big expense I'm hoping to do over time. I have been collecting pieces of equipment over time. All I need to get is rock, sand salt and fish lol. I am getting impatient and would like to start the change soon but will be unable to afford live rock anytime soon. I have done a lot of research over the last year and realize the rock is a must. Any advice and opinions would be appreciated.
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Sent from my SM-G900W8 using Aquarium Advice mobile app