Making a Sunlight-Powered Aquarium (With No Filter)

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Window aquariums are famously a bad idea because it's easy for algae to take over, but I had a 6ft open windowsill and a dream. Despite catastrophic failure along the way, a bit more DIY and aquascaping kept the adventure on track. From dealing with the challenges of algae and direct sunlight to creating a thriving, low-tech, planted ecosystem, this project has been a mix of experimentation and discovery in an unusually narrow form factor.

Follow along as the fish tank develops the natural way; with no filter, and no co2 injection.
Happy to answer questions in the comments :)

Behind-the-scenes, sneak peaks and a Discord community: https://www.patreon.com/tanksfornothin

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Please note affiliate codes provide me a small commission if you purchase any products
🌱 £5 off at Dennerle Plants UK with code 'tanksforplants'
This even stacks with their 10% newsletter discount so I get all the supplies I can from them :)
⛰️ Where I get all my hardscaping materials: https://aquatix.co.uk (UK ONLY)
Using code TANKSFORNOTHIN will get you an exclusive 20% off 😉
💡 The lights I used in this video: https://amzn.to/467bx8R
🚿 The wavemaker I used in this video: https://amzn.to/4gXXkyg
🍵 The heater I used in this video: https://amzn.to/4gXWYYs
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Chapters:
0:05 - Introduction
0:33 - Resizing
1:47 - Aquascaping attempt 1
3:27 - Catastrophe
4:50 - Alien invasion
6:12 - Colony cats
7:15 - Early nights
8:04 - Chicken feed
10:04 - Fog bloom
12:01 - Algae storm
12:59 - The Glowing Sea
14:02 - Sludge removal
15:35 - Filling the niches
17:39 - Algae holiday
18:53 - Snakes in the grass
21:06 - Green and glowing
23:13 - Ecosystem accomplished
24:43 - Thank you

Music:
To Catch an Albatross - Jon Bjork
Over the Hedges - Jon Bjork
Song of Sadhana - Jesse Gallagher
Divertissement (Léo Delibes) - Kevin MacLeod ¹
The Lotus Tree - Jerry Lacey
Divertimento (Mozart) - Kevin MacLeod ¹
Please Do - C418 ²
Quirky Dog - Kevin MacLeod ¹
Thirst - Johan Glössner
Sleepless - C418 ²
Rune Essence - RuneScape
Sudden Fun - Spectacles Wallet and Watch
Pick Your Numbers - Claude Signet
Lee Rosevere - Small Steps ³
Adventure - RuneScape
I Don't Sing - C418 ²
Dot's Yuletide - RuneScape

¹ (https://incompetech.com) http://creativecommons.org/licenses/by/3.0
² (https://c418.org)
³ https://creativecommons.org/licenses/by/3.0