Show Notes
Reefing Radio – “How Many Fish Is Too Many Fish?”
This episode is all about adding fish, stocking sensibly, and working out when a tank has reached its limit. We compare approaches, talk through what actually matters when choosing new additions, and look at how aggression, space, nutrients and behaviour shape whether a fish will work long-term.
We also have a catch up on our tanks: James’ softie system with booming yellow sponges and neat lines of hair algae, Gareth’s bubble coral that turned out to be riddled with boring sponge, and Chris’ UNS 90LA tank transfer — plus the calcium precipitation event that left his SPS cube coated in white dust.
👉 Follow us on Instagram: @reefing_radio 📘 Find us on Facebook: Reefing Radio 💬 Got feedback or questions? Drop us a message! 🎧 Subscribe to hear more reefing chat every week
More from Reefing Radio
In this episode of Reefing Radio, Chris and Gareth strip reef keeping back to basics and ask a simple question: what do you genuinely need to run a successful reef tank? From ATOs, flow and temperature control to test kits, live rock and backup equipment, we work through the gear and practices we think are truly essential. Along the way, we also challenge some of the hobby's biggest assumptions, including whether you really need to dip every coral and if clean-up crews are as important as they're made out to be. Whether you're setting up your very first reef tank or rethinking how you run an established system, this episode is packed with practical advice, personal experiences, and a few opinions that might spark some debate. As always, we'd love to hear what you think is essential... and what you'd happily leave out.
In this episode of Reefing Radio, Chris, James, and Gareth have a catch-up after a run of guest episodes. We chat about what's been happening in our own tanks, the lessons we've learned over the past few months, and how our approach to reefing is starting to change. Gareth shares the plans for his brand new custom-built reef, explaining why he's finally replacing his ageing Red Sea tank, the thinking behind his bespoke wavebox design, and how he's aiming for a simpler, more natural-looking display with fewer coral species and larger groups of fish. Chris talks through the recent heatwave, the challenges it's created for his SPS system, and why he's seriously considering moving away from an SPS-dominated tank in favour of something that's better suited to his lifestyle. James gives an update on his thriving soft coral reef, including how higher temperatures unexpectedly accelerated coral growth, why he's embraced a more relaxed approach to reef keeping, and what happens when you simply let soft corals do their thing.
In this episode of Reefing Radio, we're joined by Mark Bindefeld from MB Aquariums to explore the world of professional aquarium maintenance. Mark has built a successful business maintaining everything from tropical aquariums and reef tanks to large commercial displays, giving us a fascinating insight into a side of the hobby that most reef keepers never see.
In this episode of Reefing Radio, we’re joined by Courtney Keeps — a hobbyist known for his beautifully designed macroalgae reef tanks, natural daylight-style aesthetics, and thoughtful approach to aquarium design.
We recently visited Tropical Marine Centre — the UK’s largest importer of marine fish and coral — for an exclusive behind-the-scenes tour with CEO Brian Schaff.In Part 1 of this series, Brian takes us through TMC’s fish systems, quarantine and acclimation processes, animal care philosophy, and the logistics involved in handling thousands of marine fish each year.We also discuss fish health, decompression, captive breeding, UV sterilisation, feeding systems, and how TMC approaches marine livestock care at scale.Huge thanks to Brian and the whole team at TMC for taking the time to show us around.Part 2 coming soon.Don't miss our full sit-down interview with Brian Schaff discussing the reefing industry, supply chains, sustainability, and how the marine trade works.