Cichlid tanks.
Choose the species before choosing the chemistry. Rift Lake rock dwellers and river cichlids do not share one universal water requirement.
What goes where.
Make room for the animal first. Plan the clear floor, secure the heavy pieces, and leave access to clean and inspect the layout.
- Choose texture and size for the animals you actually keep. A broad habitat label does not cover every species.
- Support heavy stone on a suitable base before adding loose substrate. Digging must not undermine a stack.
- Product-specific chemistry, finish, and species claims appear only when confirmed.
Start with the species, not the label
Cichlids do not share one universal aquarium. Rift Lake rock dwellers, river species, and other groups can need different chemistry and layouts. Name the actual species and their adult requirements before turning a dramatic rock arrangement into a shopping list.
Shelter and sight breaks need to work for those animals. Sketch territory boundaries without leaving a maze of narrow traps. Keep open movement routes and a practical way to observe fish behind the structure. More stone is not automatically better habitat design.
Decide what the rock must do to water
The Aqueon Rift Lake guide discusses carbonate materials in that particular setting. It does not identify the minerals in our untested pebble or approve a carbonate-rich floor for every cichlid. Compare actual source-water measurements with appropriate species guidance first.
pH, alkalinity, and general hardness answer different questions. A quick household-vinegar observation is not proof that a no-reaction stone leaves them all unchanged. We withhold material recommendations tied to chemistry while the relevant facts are unconfirmed.
Account for digging in the support plan
An animal can remove ground beneath a loose stack. Heavy pieces must remain secure when the visible floor changes. Follow the tank maker's load limits and inspect actual contact points rather than relying on a flat-looking front face.
Keep access for filters, heaters, and waste removal. If a fish needs retrieval or a cave needs inspection, you should not have to lift an unstable wet pile blindly over the occupied tank. A lower modular structure can be more practical than a high continuous wall.
Keep the floor choice separate
A large supported rock and the substrate an animal mouths are different decisions. Check actual grain size and physical surfaces. An appealing lava texture is not a universal feeding floor, and larger gravel is not automatically safe because a fish is large.
After those choices, use the calculator for approximate mass and inspect the complete box plan. Read cichlid rock chemistry, stable hardscape, and vinegar-test limits. Build around evidence and the care routine that will keep the aquarium manageable.
Keep out.
- Unstable stacks supported by loose substrate
- A universal water recipe for every cichlid
Measure the ground.
Footprint, depth, and density determine the estimated pounds. Start with the dimensions of your actual tank or enclosure.
Open the substrate calculator