Modular Shrimp Hide/Moss Wall/Plant Holder Combo

This model is meant to stack to fit tanks of varying sizes. My personal use case will have moss on one of the long sides only, as that side will face the aquarium light. It can be stacked all the way to the top of the tank as long as it has a stable base and water flow isn't crazy high where you place it. The plant insert is meant as an optional topper for growing small stem cuttings of things like pothos in tanks without lids. 

I recommend starting your moss outside of the water for faster and fuller growth as well as better adhesion. The way to do this is to cut the moss into small 2-4 ish mm pieces using a sterile knife (or just a clean slap chopper like I used lol) and ideally rubber gloves and carefully apply them to the model all over the areas you wish to be covered. Keep it in a humidity dome (anything from a well cleaned plastic food clamshell to clear storage totes will work) and mist as needed. Aquarium safe fertilizer diluted per instructions on the bottle is helpful for growth. Monitor for mold and spot treat with dilute hydrogen peroxide as needed, and consider increasing ventilation if you are having issues. Once the moss has grown in and adhered well to your model, you can add it to your tank. 

I recommend printing with the top down and supports only around the lip area where the models slot together. The plant insert is designed to print support-free as it is a dome shape following a gentle slope, and it did print well for me. Stringing is not really something you want to avoid here as it can help with the moss adhesion but excess can be removed with a lighter as per usual. I recommend PETG and checking that food safe dyes are used before putting any material in your tank. 

Let me know if there are any particular tweaks you are interested in. I have more options coming soon - just have to test printability first.