Peacock Cichlid Stocking Calculator

PEACOCK CICHLID STOCKING GUIDE

How Many Peacock Cichlids Can You Keep in Your Tank?

Quick answer: There is no reliable number of peacock cichlids that fits every aquarium. Tank dimensions, adult size, behavior and water quality all matter. This Peacock Cichlid Stocking Calculator reviews important risk factors and estimates actual water volume. It does not use a misleading one fish per gallon rule.

How does this peacock cichlid stocking calculator work?

Enter your aquarium dimensions, the filled water height and the number of fish you plan to keep. Select the measurement unit and an approximate allowance for rocks and substrate. Then choose your fish group, adult male count, filtration and rockwork. The calculator estimates water volume after displacement and checks the footprint against a published example for Aulonocara stuartgranti. It highlights possible conflicts before buying.

What aquarium size do adult peacock cichlids need?

Adult peacock cichlids need horizontal swimming room as well as water volume. A documented reference for Aulonocara stuartgranti is a base measuring about 120 by 45 centimeters, or 48 by 18 inches. That reference does not fit every species. Larger haps may require a bigger aquarium. Tall narrow tanks can lack swimming space. Check your exact species before choosing a tank.

Why does the number of males affect stocking?

Breeding male peacocks may defend territories and chase fish with similar appearance. Multiple males in a small footprint can increase competition even when filtration is strong. Breeding groups differ from all male displays. Watch for prolonged chasing, torn fins, hiding or fish missing meals. Severe aggression may require separation.

Can you stock peacock cichlids with Malawi haps or mbuna?

Some relatively calm Malawi haps may be suitable companions when adult size, diet and temperament match. Large predatory haps need extra care because small fish may be at risk. Many mbuna are more territorial and may have different feeding needs. Mixed groups require careful review. Use the Compatibility Checker for named species and avoid deciding from broad group labels alone.

How do filtration and rockwork change a stocking plan?

A well established biological filter helps process fish waste, but it cannot create extra swimming space. Test ammonia and nitrite, review nitrate trends and maintain steady water changes. Secure rock structures can break lines of sight while leaving open areas for peacocks to move and forage. The calculator estimates displacement rather than assuming the glass tank is filled completely with water. Actual volume varies with decor.

What should you do after getting your stocking result?

Read every warning and check the individual fish species. Treat this result as an early screening step rather than a stocking limit or a guarantee of peaceful behavior. If the tool shows high concern, review the tank footprint, possible adult size differences and filter maturity before adding fish. Save your measurements and continue testing water regularly. When in doubt, choose a more conservative plan and observe your fish over time.