In this episode of Aquarist's Edge, host Arthur Preston delves into the intriguing world of natural aquariums by comparing two popular methodologies: the Walstad Method and the Father Fish Method. Explore the philosophies and techniques of Diana Walstad, a scientist who emphasizes the use of soil for nutrient sourcing in aquariums, and Lou 'Father Fish' Foxwell, a seasoned aquarist advocating for deeply layered substrates.
Listeners will gain insights into the foundational differences between Walstad's science-driven, simpler setups and Father Fish's complex, long-term sustainable systems. The discussion covers substrate strategies, nutrient cycling, and the contentious issue of water changes, with practical advice for aquarists of all levels.
Whether you're a beginner seeking a low-tech approach or an experienced aquarist aiming to minimize maintenance, this episode provides a balanced view to help you decide which method suits your needs best. Listen now to discover how these natural aquarium practices can transform your hobby.
00:00:00 --> 00:00:06 Welcome to this episode of the Aquarist's Edge, a podcast for home aquarists just like you.
00:00:06 --> 00:00:10 Learn more about how to keep a thriving aquarium and discover ideas and tips
00:00:10 --> 00:00:12 to give your aquarium the edge.
00:00:12 --> 00:00:15 And now, over to our host, Arthur Preston.
00:00:18 --> 00:00:23 In today's episode, we're going to compare two fascinating methods for creating
00:00:23 --> 00:00:28 low-maintenance natural aquariums. On one hand we have the Wellstead method
00:00:28 --> 00:00:31 and on the other the Father Fish method.
00:00:32 --> 00:00:38 Both of these approaches have dedicated followers yet they differ in philosophy and execution.
00:00:38 --> 00:00:43 So whether you're just starting out or you're an experienced acquirist will
00:00:43 --> 00:00:47 help you understand the key differences and which might suit your needs best.
00:00:48 --> 00:00:53 So let's start by introducing the two personalities behind these methods.
00:00:53 --> 00:00:58 Diana Wellstad and Lou Foxwell, who's also known as Father Fish.
00:00:59 --> 00:01:04 Diana Wellstad is a scientist and an aquarist whose book Ecology of the Planted
00:01:04 --> 00:01:07 Aquarium changed how we approach planted tanks.
00:01:07 --> 00:01:11 This book was published in the late 1990s and emphasized harnessing natural
00:01:11 --> 00:01:14 processes to create sustainable ecosystems.
00:01:15 --> 00:01:18 It's an interesting read and I do encourage you to pick it up if you have an
00:01:18 --> 00:01:20 interest in this side of aquarium keeping.
00:01:21 --> 00:01:25 Her method is rooted in biology and ecology and draws on her research background.
00:01:26 --> 00:01:31 She proposes using soil as a nutrient source for plants, mimicking the natural
00:01:31 --> 00:01:34 processes found in lakes and ponds.
00:01:34 --> 00:01:39 And her book remains a cornerstone for aquarists who want to explore low-tech natural setups.
00:01:40 --> 00:01:42 On the other hand, you have Father
00:01:42 --> 00:01:46 Fish, or Lou Foxwell. He's been keeping aquariums for a very long time.
00:01:46 --> 00:01:50 Through his YouTube channel he's inspired
00:01:50 --> 00:01:53 many many hobbyists over the years with his relaxed and
00:01:53 --> 00:01:56 practical approach to aquarium keeping he's not
00:01:56 --> 00:01:59 a scientist in the formal sense but he has years and
00:01:59 --> 00:02:04 years and decades in fact of hands-on experience and a knack for explaining
00:02:04 --> 00:02:10 complex ideas in simple terms his method builds on Wolstad's principles adding
00:02:10 --> 00:02:13 a unique twist focused on creating
00:02:13 --> 00:02:17 deeply layered substrates that support self-sustaining ecosystems.
00:02:18 --> 00:02:23 So let's take a look at the basics of each method. We'll start with the Wallstead method.
00:02:24 --> 00:02:29 This aims to replicate the nutrient cycling found in natural water bodies, and this is how it works.
00:02:29 --> 00:02:34 First, you have a substrate composition of a nutrient-rich soil layer of about
00:02:34 --> 00:02:38 2.5 cm deep, capped with about 2.5 cm of gravel.
00:02:40 --> 00:02:46 She proposes dense planting with fast-growing plants that outcompete algae and absorb nutrients.
00:02:47 --> 00:02:52 She suggests that fish are added straight away as they contribute to the nutrient
00:02:52 --> 00:02:53 cycle through their waste.
00:02:54 --> 00:03:00 She proposes moderate lighting that supports plant growth without encouraging algae blooms.
00:03:00 --> 00:03:04 And in terms of water changes, she does suggest that these are done,
00:03:05 --> 00:03:10 but not often, that they're minimal and the occasional water changes are done
00:03:10 --> 00:03:11 to maintain the fish health.
00:03:12 --> 00:03:17 So Wallstead tanks are celebrated for their simplicity and their ability to
00:03:17 --> 00:03:20 thrive with little intervention once established.
00:03:21 --> 00:03:26 Father Fish, on the other hand, while he also emphasizes natural processes,
00:03:26 --> 00:03:30 he incorporates a thicker substrate to create anaerobic zones,
00:03:30 --> 00:03:33 which he claims provide long-term nutrient availability.
00:03:34 --> 00:03:37 And so here are some of the key elements of his approach in
00:03:37 --> 00:03:40 the first place he would suggest a two and a half centimeter soil
00:03:40 --> 00:03:44 layer but instead of being topped with only a two and a half centimeter layer
00:03:44 --> 00:03:47 of of sand or gravel he says create a
00:03:47 --> 00:03:49 five centimeter topping of fine sand and
00:03:49 --> 00:03:52 he says the dense sand cap locks nutrients
00:03:52 --> 00:03:55 in and promotes anaerobic bacteria he also
00:03:55 --> 00:03:58 suggests adding organic materials like compost or
00:03:58 --> 00:04:02 leaf litter which are often mixed into the soil for
00:04:02 --> 00:04:04 a nutrient boost he suggests that
00:04:04 --> 00:04:07 fish can be introduced as early as day two and that
00:04:07 --> 00:04:10 the sand cap prevents nutrient leaching which makes early stocking
00:04:10 --> 00:04:15 safer in terms of water changes father fish created controversies some months
00:04:15 --> 00:04:19 ago with a video in which he said water changes are necessary and of course
00:04:19 --> 00:04:23 in the aquarium community that created quite a stir and there were numerous
00:04:23 --> 00:04:29 well-known youtube personalities in the aquarium world who produced their own rebuttals to his video,
00:04:29 --> 00:04:34 But in a nutshell, he says that with minimal feeding and little to no water
00:04:34 --> 00:04:38 change, the ecosystem of the aquarium will keep a natural balance.
00:04:39 --> 00:04:43 And so he advocates for tanks that are almost completely self-sustaining,
00:04:43 --> 00:04:46 with substrates that can last indefinitely under proper conditions.
00:04:48 --> 00:04:52 So let's have a look at those key differences and controversies again.
00:04:53 --> 00:04:54 And firstly, let's start with the substrate.
00:04:55 --> 00:05:00 Wallstedt says it's a balance between aerobic and anaerobic processes with a thin gravel cap.
00:05:01 --> 00:05:04 Father Fish, on the other hand, says we've got to rely heavily on anaerobic
00:05:04 --> 00:05:07 zones created by the thick sand cap.
00:05:07 --> 00:05:12 And this distinction sparks debate over long-term sustainability and the ease of maintenance.
00:05:12 --> 00:05:16 And critics argue that Father Fish's method can lead to hydrogen sulfide buildup
00:05:16 --> 00:05:18 if not carefully managed.
00:05:19 --> 00:05:23 In terms of water changes, again, Wellstead says occasional partial water changes,
00:05:24 --> 00:05:26 particularly for the good of the fish.
00:05:26 --> 00:05:30 Father Fish, on the other hand, says water changes are basically unnecessary
00:05:30 --> 00:05:31 once your balance is achieved.
00:05:32 --> 00:05:35 And so this difference highlights a philosophical contrast between the two,
00:05:36 --> 00:05:40 Wellstead prioritizing adaptability, while Father Fish focusing on creating
00:05:40 --> 00:05:42 a self-sustained or contained system.
00:05:43 --> 00:05:47 In terms of ease of setup, Wellstead is beginner-friendly, and the whole process
00:05:47 --> 00:05:48 is very well documented in her book.
00:05:49 --> 00:05:53 Father Fisher's approach requires more affront work to create the enriched substrate.
00:05:53 --> 00:05:57 And some people find that Father Fisher's method is intimidating due to its
00:05:57 --> 00:06:03 complexity, while others appreciate the long-term benefits of reduced maintenance on his method.
00:06:05 --> 00:06:08 Now both methods have their supporters and their detractors.
00:06:09 --> 00:06:13 For Wallstead, the critics argue that the soil's nutrients are depleased within
00:06:13 --> 00:06:16 a year or two, and so this requires replanting or re-soiling.
00:06:17 --> 00:06:21 Whereas for Father Fish, the opponents of his method worry about the risk of
00:06:21 --> 00:06:25 anaerobic zones, which can include toxic gas pockets that could harm fish.
00:06:25 --> 00:06:29 And yet, despite these criticisms, both approaches have been proven effective
00:06:29 --> 00:06:31 when implemented correctly.
00:06:31 --> 00:06:35 So I guess that leaves us asking, which method should I choose?
00:06:36 --> 00:06:41 So, my suggestion would be, choose the well-said method if you're new to planted
00:06:41 --> 00:06:45 tanks and want a simpler setup. If you're interested in learning the fundamentals
00:06:45 --> 00:06:49 of nutrient cycling, and if you don't mind occasional water changes.
00:06:51 --> 00:06:55 If, however, you want to look at the father fish method, do this if you're seeking
00:06:55 --> 00:06:59 a long-term, low-maintenance solution and if you're comfortable with a more
00:06:59 --> 00:07:04 complex setup process, but also if you want to minimize water changes as much as possible.
00:07:04 --> 00:07:08 Look, at the end of the day, both methods can produce stunning,
00:07:08 --> 00:07:09 beautiful, healthy tanks.
00:07:10 --> 00:07:14 And so the best choice depends on your preferences and your willingness to experiment.
00:07:15 --> 00:07:20 We know that both these methods can work. We know that both can produce stunning
00:07:20 --> 00:07:24 tanks. we know both can provide a fulfilling experience for you as an aquarist.
00:07:25 --> 00:07:30 Do your homework, do your research, watch the videos, read the books,
00:07:30 --> 00:07:35 find out from other people who are doing one or two of these methods and see if it'll work for you.
00:07:36 --> 00:07:37 Experiment and try it out.
00:07:38 --> 00:07:42 At the end of the day, whatever method you choose needs to work for you,
00:07:43 --> 00:07:48 your time availability and your long-term view of what you want your aquarium to be.
00:07:49 --> 00:07:51 So go ahead and try one of these methods with your aquarium.
00:07:53 --> 00:07:58 At the end of the day, you need to do something that's going to work for you and your livestock.
00:07:58 --> 00:08:05 In conclusion then, the Wallstead and the Father Fish methods represent two sides of the same coin.
00:08:05 --> 00:08:09 Both celebrate the beauty of natural aquariums, but their approaches differ
00:08:09 --> 00:08:11 in execution and philosophy.
00:08:12 --> 00:08:16 So from my side, why not try both? experimentation is
00:08:16 --> 00:08:20 the heart of aquarist innovation have fun
00:08:20 --> 00:08:23 with this enjoy it and enjoy creating
00:08:23 --> 00:08:28 a beautiful underwater natural self-sustaining ecosystem so that's it for this
00:08:28 --> 00:08:34 episode i will see you at the next one take care enjoy your fish keeping bye
00:08:34 --> 00:08:39 for now that's it for this episode of the aquarist edge please consider subscribing
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00:08:47 --> 00:08:52 Until next time, keep learning and discovering and keep finding your Aquarius
00:08:52 --> 00:08:55 edge in this captivating and fascinating hobby.
00:08:55 --> 00:09:04 Music.