25gal no filter tank

Posted by OutsidePrimary4052

5 Comments

  1. At a minimum, you will need a powerhead or air stone for circulation, or you’re very likely to end up with stagnated water.

    What’s your question here?

  2. You should double the sand layer. This is a walstead aquarium though, no heater or filter required(depending on fish).

    I’ve got a couple of them running. It takes a while for everything to establish, and I’d recommend more plants than less, or you’ll quickly run into algae issues. I personally keep a sponge filter in them as a failsafe, but it’s technically not necessary.

    Edit: I thought that said cm. You’d need like 3-4cm of sand.

  3. prinses_zonnetje on

    From what I understand, pea puffers and shrimp do not go well together. The pea puffer will like the fresh snacks though

  4. Hopeful-Mirror1664 on

    I would definitely make a deeper sand cap. I know you don’t want to do a filter but I’d put a sponge filter tucked in a corner and covered by plants for some water movement and aeration. I’ve done “modified Walstead” tanks like this for years.

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