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Substrate Spawners

Substrate Spawners. Artificially Raising Substrate Spawning Fish. Hobbyists have been artificially raising substrate-spawning fish for many years. This technique is popular for angelfish, Central American Cichlids and other substrate-spawning fish with small eggs.

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Substrate Spawners

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  1. Substrate Spawners

  2. Artificially Raising Substrate Spawning Fish • Hobbyists have been artificially raising substrate-spawning fish for many years. • This technique is popular for angelfish, Central American Cichlids and other substrate-spawning fish with small eggs. • Some hobbyists feel that artificially raising fry (i.e. pulling the spawn) weakens the pair bond of the fish. • This notion has not been explored scientifically. • It should be pointed out the the majority of angelfish breeders (and many cichlid breeders) raise fry artificially.

  3. Angelfish Production

  4. Topics • Background • Varieties • Water Quality • Nutrition • Spawning • Hatching • Juveniles

  5. Angelfish Background • Angelfish • Cichlidae family • Pterphyllum scalare, P. dumerilii and P. altum • Amazon basin and coastal rivers of the Guineas

  6. Colors Silver Gold Black Finnage Normal Veil Super veil Scales Normal Pearl scale Operculum Normal Blusher Varieties

  7. Silver (wild type)

  8. Gold Marble Veil Black and White

  9. White Blusher Black Super Veil

  10. Chocolate Super Veil Black Marble

  11. Temperature 82ºF spawning (27.8ºC) 76-84ºF growout pH 6.8-7.2 Hardness Less than 100 mg/L Daylength 14L – 8D Water Quality

  12. Nutrition • Breeders • Frozen Brine Shrimp in the morning • Flakes in the afternoon • Juveniles • Newly hatched Artemia salina • Flakes • Fry • Newly hatched Artemia salina

  13. Flake Feeds

  14. 15 oz Brine Shrimp 1 tsp eggs with 2 tbs saltin 2.8 liter water

  15. Brine Hatching Station3 liter soda bottles

  16. Spawning • Broodstock selection • Hard to distinguish males from female • Natural pairing • 6 high quality juveniles in tank • Separate when bonding commences

  17. Spawning • Place pair in 10-15 gallon aquarium • Water • 82°F • 14 hrs light • Feeding • slacked out frozen brine shrimp • Flakes • Spawning substrate

  18. Natural Pairing

  19. Natural Substrate Slate Tile

  20. Female Male

  21. 200-400 eggs per spawn • Spawn every 7-10 days

  22. 2.5 gallon hatching tanks

  23. Juveniles • 3 months from hatch to market • Sizes • Dime $0.50 • Quarter $0.75 • Half dollar $1.00 to 1.50 (These $$ are 1997 data.)

  24. Substrate Spawners (Robbing the Nest) • Rem: there are as many ways to raise fry as there are aquarium hobbyists and scientists. • Before you get started… • Purchase the necessary supplies. • Make sure you have space!!! • Decide where you want to place the hatch tank. • Observe when your fish spawn. One day post-spawning, you can pull the eggs.

  25. Partial Supply List • Small hatching tank • Air Pump (10 gallon size). • Standard, plastic airline • Gang Valve • Small 7.5 Watt Heater • Methylene blue (any brand) • Small sponge filter • Turkey baster • Hang-on or floating thermometer

  26. Step 1 • Fill a clean, small tank or container with six quarts of water from the spawning tank.

  27. Step 2 • Remove the hatch from the spawning tank the day after spawning. • Avoid exposing the eggs to air. • Invert the spawning surface (rock, etc.) inside a cup or container.

  28. Step 3 • Place the spawning surface (rock, etc.) inside the hatching tank.

  29. Step 4 • Aerate the water. • Take care not to blast the eggs with air. It could damage them.

  30. Step 5 • If your room temperature is below 78F, place a 7.5 watt aquarium heater in the tank. • Maintain the temperature at 78–81°F. • A lid may help in cold rooms.

  31. Step 6 • Add 2 drops of Methylene Blue per each quart of water (any brand will do nicely). • Methylene Blue kills fungus, which would prevent oxygen exhange across the egg’s outer membrane and ultimatley destroy the eggs. • NOTE: Methylene Blue stains clothes permanently!

  32. Step 7 • Methylene Blue stains the water a deep blue. • Eggs are light sensitive— do not put a light over the tank.Your water should be darker than the picture at right.

  33. Step 8 • Use a strong flashlight and check the hatch daily. • Most eggs hatch within 48-72 hours. • At 6 to 9 days post-spawn, the fry should be free of the spawning surface at the "belly whomper" stage— not quite able to swim, but hopping on the bottom. • Remove the spawning surface (rock, etc.).

  34. Step 9 • As soon as the fry are belly whompers, start small, daily water changes. • Remove a quart of water from the tank. Replace it with fresh, dechlorinated water. • As you do more water changes, the water will get lighter and lighter.

  35. Step 10 • Carefully remove the debris using a turkey baster or small siphon.

  36. Fry care… • When the fry are free-swimming, add a small, seasoned sponge filter to replace the airstone. • At this point, start feeding freshly hatched baby brine shrimp. Feed until the tummies are nice and round! • Prepare a ten-gallon, grow-out tank. Use a sand or bare bottom, heater and sponge filter.

  37. Continue feeding baby brine shrimp. -21 days post hatch: Begin feeding finely crushed flake food -30 days fry should be off brine shrimp. -Weekly, 50% water changes are critical for fry growth.

  38. Aquarium plants & Breeding Fish by Robert Paul H Plants play an important role in breeding many types of fish and protecting fry. Choosing the right plants for your fish depends on the growing habits and leaf structure of the plant, and the breeding habits of the fish. Here are some examples: (Click on the images for a larger view) Cabomba caroliniana Spawning plant for many barbs and characins. Suitable for cold water fish. Needs bright light. Hornwort, Ceratophyllum demersum Rootless, floating stem plant. This hardy, easy to grow plant can be anchored to the substrate, (but it will never grow roots), or allowed to float. Great spawning plant for all fish and gives hiding places for females and fry. Water sprite, Ceratopteris Planted or floating, suitable for larger fish and bubble-nest builders. Easy to care for plant. Spawning Substrate • What if you want a natural set up?? • Depending on the fish species, you may choose to utilize aquatic vegetation to complete your fish’s life cycle with.                                 Marble Queen Sword, Radican Sword Large broad leaf plant suitable for large fish who like to lay eggs on large flat surfaces, such as Angelfish               Egeria najans Stem plant with small leaf whorls, moderate light, grows planted or floating and suitable for free-spawning fish in cooler water               Hygrophila difformis, Water Wisteria Stem plant with thick lacey growth that needs bright light. Suitable for larger free spawning fish.               Ambulia, Limnophila Tall growing stem plant with thick, feathery leaf clusters. Requires bright light. Spawning plant for all free-spawning characins and barbs.               Ludwigia repens Stem plant that needs moderate to bright light, planted or floating, can be used in cool water, suitable for fish that like to spawn on smaller leaf surfaces such as Chessboard cichlids               Foxtail, Myriophyllum Stem plant with soft, fine-plumed leaves. Needs moderate to bright light and suitable for small free spawning fish. Floating plants for bubble-nest builders and Killifish: Water lettuce Duckweed Riccia Water hyancinth Java moss Provides a thick mossy cushion on the tank bottom or attached to wood or rock. Free spawning fish such as barbs, characins, and rainbow fish respond well to it. Requires only low to moderate light.

  39. Spawning Substrate Plants

  40. Aquarium plants & Breeding Fish by Robert Paul H Plants play an important role in breeding many types of fish and protecting fry. Choosing the right plants for your fish depends on the growing habits and leaf structure of the plant, and the breeding habits of the fish. Here are some examples: (Click on the images for a larger view) Cabomba caroliniana Spawning plant for many barbs and characins. Suitable for cold water fish. Needs bright light. Hornwort, Ceratophyllum demersum Rootless, floating stem plant. This hardy, easy to grow plant can be anchored to the substrate, (but it will never grow roots), or allowed to float. Great spawning plant for all fish and gives hiding places for females and fry. Water sprite, Ceratopteris Planted or floating, suitable for larger fish and bubble-nest builders. Easy to care for plant. Plants, Plants, Plants… • Plants play an important role in breeding many types of fish and protecting fry. • Choosing the right plants for your fish depends on the growing habits and leaf structure of the plant, and the breeding habits of the fish.                                 Marble Queen Sword, Radican Sword Large broad leaf plant suitable for large fish who like to lay eggs on large flat surfaces, such as Angelfish               Egeria najans Stem plant with small leaf whorls, moderate light, grows planted or floating and suitable for free-spawning fish in cooler water               Hygrophila difformis, Water Wisteria Stem plant with thick lacey growth that needs bright light. Suitable for larger free spawning fish.               Ambulia, Limnophila Tall growing stem plant with thick, feathery leaf clusters. Requires bright light. Spawning plant for all free-spawning characins and barbs.               Ludwigia repens Stem plant that needs moderate to bright light, planted or floating, can be used in cool water, suitable for fish that like to spawn on smaller leaf surfaces such as Chessboard cichlids               Foxtail, Myriophyllum Stem plant with soft, fine-plumed leaves. Needs moderate to bright light and suitable for small free spawning fish. Floating plants for bubble-nest builders and Killifish: Water lettuce Duckweed Riccia Water hyancinth Java moss Provides a thick mossy cushion on the tank bottom or attached to wood or rock. Free spawning fish such as barbs, characins, and rainbow fish respond well to it. Requires only low to moderate light.

  41. Cabomba caroliniana • Spawning plant for many barbs and characins. • Suitable for cold water fish. • Needs bright light.

  42. Hornwort, Ceratophyllum demersum • Rootless, floating stem plant. • This hardy, easy to grow plant can be anchored to the substrate, (but it will never grow roots), or allowed to float. • Great spawning plant for all fish and gives hiding places for females and fry.

  43. Water sprite, Ceratopteris • Planted or floating, suitable for larger fish and bubble-nest builders. • Easy to care for plant.

  44. Cryptocoryne blassi • Broad leaf plant, moderate light, grows fairly tall, suitable for fish that like to spawn on large flat surfaces, such as Angelfish

  45. Marble Queen Sword, Radican Sword • Large broad leaf plant • Suitable for large fish who like to lay eggs on large flat surfaces, such as Angelfish

  46. Foxtail, Myriophyllum • Stem plant with soft, fine-plumed leaves. Needs moderate to bright light and suitable for small free spawning fish.

  47. Water Wisteria, Hygrophila difformis • Stem plant with thick lacey growth that needs bright light. • Suitable for larger free spawning fish.

  48. water lettuce duckweed riccia Floating plants for bubble-nest builders and Killifish: • Water lettuce • Duckweed • Riccia • Water hyancinth water hyacinth

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