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Questions about freshwater tanks

Write to us about cycling, water parameters, aquascape layout, plant selection or whether a stocking plan will work. Questions that come up repeatedly become FAQ entries on the relevant article.

Before you write about fish that are unwell: test ammonia and nitrite first. In a tank under two months old those two numbers explain most losses, and no email can substitute for them. For a problem that persists in a cycled tank, an aquatic veterinarian is the right destination — we do not give treatment protocols.

Prefer email? Write to contact@animal-spaces.com. We usually reply within 2–3 business days.

Corrections

Water chemistry is a field full of confidently repeated errors, and we are not immune. If something here is wrong, send the article title and the correction — see the editorial policy.