🪟 Glass & 🪣 Substrate Maintenance Guide

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🧠 Why These Matter

• Glass cleaning = visibility + algae control. Neglect → light blocked, pH/CO₂ shifts, bacteria layers.
• Substrate cleaning = waste removal, nitrate/phosphate control, prevents anaerobic gas pockets.
• Both reduce pathogen load and keep your fish stress-free (especially rays, plecos, and cichlids that produce lots of waste).

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🪟 Glass Cleaning in Depth

🔹 Daily Micro-Maintenance (30–60 sec)

• Run a magnet cleaner over the front panel after lights-on.
• Benefits: algae doesn’t establish → saves you scrubbing sessions later.

🔹 Every 2–3 Days

• Magnet pass on all visible panes.
• Rotate angle to catch corner seams and behind filter outflows.

🔹 Weekly Deep Clean

• Plastic blade/algae pad for stubborn green spot algae.
• Use credit card edge or razor (glass tanks only) for coralline/spot algae.
• Detail behind wood, intake pipes, and in low-flow areas.

🔹 Monthly “Wall Service”

• Clean back panel and hidden sides.
• Toothbrush scrub on driftwood surfaces and rock faces that collect fuzz algae.
• Optional: scrub heater, thermometer, and tubing to restore efficiency.

⚠️ Special Notes

• Planted tanks: avoid removing all algae — some periphyton = natural graze for plecos/otocinclus.
• Acrylic tanks: use acrylic-safe pads only — scratches are permanent.
• Algae imbalance (fast regrowth ≤24h) → check phosphate/nitrate balance & lighting period, not just glass.

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🪣 Gravel / Sand Vacuuming in Depth

🔹 Gravel Systems (medium–coarse)

• Weekly A/B pattern: vacuum half the footprint each week.
• Every 2 weeks: cover the other half → bacteria preserved, mulm still removed.
• Monthly: lift/tilt major driftwood/rocks carefully → vacuum underneath.

Technique:

1. Insert siphon bell ~5 cm down.
2. Lift–drop rhythm to pull mulm without stripping all gravel bacteria.
3. Prioritize feeding zones, caves, under returns.

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🔹 Sand Systems (fine sand, stingrays, geophagus, planted with sand cap)

• 2× per week (heavy rays/plecos): hover siphon 1–2 cm above sand.
• Weekly (moderate loads): single hover pass across main zones.
• Monthly: gentle finger/card stir along tank edges, corners, and under decor to release trapped gas.

Technique:

1. Keep siphon above sand, let detritus “snow” lift in.
2. Use wide-bore siphon (better lift, safer for rays).
3. Fan surface lightly with hand/turkey baster to suspend waste.

Cautions:

• Never jam into sand in ray tanks — risk disc abrasions + collapse of anaerobic layers.
• Planted tanks: avoid uprooting stems; skim surface only.

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📊 Frequency by Tank Type

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📈 Indicators You Need to Clean Sooner

• Glass film back <48 h → algae imbalance.
• Cloud when decor is bumped → substrate mulm-heavy.
• pH sag between changes → excess organic load.
• Musty odor → decaying waste in substrate.
• Fish behavior: plecos rasping only on glass, rays resting on “dirty” patches, or corys constantly surfacing for air.

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🧯 Safety & Workflow Tips

• Never deep vacuum + full canister clean same day → stagger by 3–7 days to protect nitrifiers.
• Prefilter sponges: rinse 2–3×/week, they trap most mulm before it settles.
• Feeding tiles for rays/plecos: lift & vacuum that tile every session → controls most waste quickly.
• Rock piles: powerhead/turkey baster blast before siphon.
• Driftwood undercuts: check monthly → detritus hotspot.
• Stirring sand: do small zones each time instead of the whole bed → safer gas release.

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⏱️ Example Weekly Rhythm

Monday → Quick glass front (1 min magnet)
Tuesday → Substrate A-side vacuum + 30–50% WC
Wednesday → Glass full pass; baste rocks/wood with turkey baster
Thursday → Rest day / feeding only
Friday → Spot vacuum feeding area; quick glass
Saturday → Substrate B-side vacuum + 30–50% WC
Sunday → Back/side wall scrub + equipment wipe

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✅ Bottom line:

• Glass: front daily / sides 2–3× weekly / detail weekly / deep monthly.
• Gravel: A/B vacuum weekly.
• Sand: hover 1–2× weekly, stir corners monthly.
• Adjust by nitrate slope, detritus load, and fish behavior.