SQ Mag is reading for their 2016 special edition:
Life doesn't exist in a vacuum. Plants and mushrooms work together to create networks, an ecosystem. We live together with microbiotic bugs in our mouths, our guts. No being exists on their own. We exist in colonies, in families, as part of worlds. Show us symbiosis: two characters that can't live without each other, or someone perfectly adapted to their microcosm. Working in sync to create a better life.
They're paying a token $15 USD for specluiative fiction on the theme of Symbiosis, between 1,000 and 5,000 words. Market closes 18th of April, so get writing!
Literarium market listing: https://literarium.net/market/ifwg-publishing-australia/sq-mag-special-edition-2016