A Spacious Home Your Koi Will Love
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Give your koi and large aquatic pets room to glide in comfort.
The MK Aquarium 320 Gallon Clear Sides Koi Tank brings roomy swimming space and bright, open views to your aquaculture setup. The clear PVC sides make it easy to enjoy your fish, while the strong stainless steel frame keeps everything steady indoors or outdoors. A handy side drain also makes water changes smooth and simple.
Built for big fish, bold displays, and easy care.
✔ Great for koi, large fish, and aquaponics
✔ Clear sides for easy viewing
✔ Strong stainless steel frame
✔ Fast water changes with side drain
Sized at 78.7 x 39.4 x 23.6 inches with a 320‑gallon capacity. Wipe the clear PVC canvas with a soft cloth and use clean water during regular maintenance. Avoid sharp objects around the canvas.
We are proud to offer duty-free, reliable, tracked shipping— delivered to your door in over 200 countries worldwide!
Below you can check our average shipping times:
Domestic USA Shipping: 2-9 business days
US & Canada: 7-18 days
Europe: 7-18 days
Europe Plus*: 8-30 days
Australia, New Zealand: 7-18 days
Hong Kong, Singapore: 7-18 days
Rest of the world: 8-30 days
*does not include processing times up to 2 business days or longer in peak periods
Primarily we ship out from fulfillment centers in the United States, Eastern Asia and Western Europe. If the item you've purchased is out of inventory in your nearest location, we'll send it directly from our production lines at the same delivery times as stated in our shipping section.
What fish can I keep in this tank?
It works well for koi, large freshwater fish, and many aquaculture or aquaponics setups.
Can I use it outdoors?
Yes, the stainless steel frame and UV‑coated canvas make it suitable for outdoor use.
Is it hard to clean?
No. The clear canvas wipes clean easily, and the side drain helps with quick water changes.
Choose the right size for your Koi show or aquaculture project. Our size chart helps you select the best fit.
Contact us today at: support@mkaquariumstore.com to discuss your custom requirements and get a personalized quote.
Just unfold, connect, and fill – your tank is ready in minutes!
The 320‑gallon size gives koi and other large pets plenty of room to swim and thrive.
The clear PVC canvas lets you watch your fish and enjoy your aquaculture setup anytime.
The frame adds long‑lasting support for indoor or outdoor use.
A side drain and valve make routine care fast and simple.
Support straps and solid connectors keep the tank steady during daily use.
Built for clarity, strength, and easy care.
| Features | MK Aquarium | Knock-Offs |
|---|---|---|
| Large 320‑gallon capacity | ||
| Clear PVC viewing sides | ||
| Stainless steel frame | ||
| UV‑coated canvas | ||
| Side drain and valve | ||
| Stable support straps | ||
| Outdoor‑ready design | ||
| Simple assembly parts | ||
| Designed for aquaculture use |
Turn your tank into a stunning display. Crystal-clear panels let your fish shine from every angle.
Engineered for maximum durability, our tanks combine a tough PVC outer coating, tear-resistant nylon layer, and leak-proof protection for total peace of mind.
Most users finish in under an hour using the included brackets, hooks, and tools.
Yes. You get the canvas, frame parts, hooks, connectors, and tools listed in the package.
Yes, the spacious design works well for koi breeding and other aquaculture projects.
The frame is stainless steel, which helps resist rust in normal use.
The UV coating helps keep the material clear when used indoors or outdoors.
It’s best to move the tank only when empty to keep it stable and safe.
Yes, the large capacity and clear sides make it easy to monitor plants and fish.
Rinse with clean water and wipe gently with a soft cloth to keep it clear.
Yes, most standard hoses can connect to the drain for fast water changes.
