eSHa EXIT: Standard Dosing and When to Reassess
By Richard James · Updated 27 October 2026
Standard course checked against eSHa’s calculator: 27 October 2026.
Check the bottle’s instructions and establish why EXIT is the appropriate treatment before calculating an amount. This guide describes the standard course, not a diagnosis from the appearance of spots.
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The standard course at 100 litres
| Day | Standard quantity |
|---|---|
| 1 | 20 drops |
| 2 | 10 drops |
| 3 | 10 drops |
At 80 L, those quantities scale to 16, 8 and 8 drops. Enter measured water volume without an additional decor deduction. If estimating from dimensions, the selected displacement allowance remains an estimate.
The higher “velvet” table has been removed
The previous article gave 20 drops per 100 L on all three days for velvet. That alternate course was not substantiated from the current sources checked here. Do not use that former table or add extra medicine simply because one symptom looks more severe.
Extensions depend on response and the instructions
eSHa’s EXIT guidance permits an extension using the later-day dose in specified circumstances, including improvement during the initial course. That is not an instruction to keep dosing indefinitely until all spots disappear plus another day. If there is little improvement or the condition changes, reassess the diagnosis and follow the applicable manufacturer guidance.
The earlier absolute claims that attached parasites are immune to every medicine and that a particular course guarantees success have been removed. This page does not establish comparative treatment efficacy.
Equipment and aftercare
Follow eSHa’s instructions for chemical media and UV while maintaining ordinary filtration. Do not substitute a universal blackout, temperature change or cleanup day for the product’s actual requirements. Timing depends on whether the course has finished or been extended.
Keep a dated record of symptoms, quantities, water changes and equipment settings so the response can be assessed. Apparent disappearance of spots is only one observation.
Sources and tools
- eSHa EXIT: live calculator and FAQs
- Sensitive fish: avoid unsupported dose adjustments
- Removal and switching
Written by Richard James
Aquarist and author specializing in disease prevention and treatment. Keeping your aquarium healthy one drop at a time.
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