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Jul 5, 2017

Corydoras Origami

New species ? Nope. Is a hobby on Origami. And the species is corydoras schwartzi.




I enjoyed the whole process of making it. 6 of them. Cheers


Cory
20170705

Oct 20, 2013

Aquascape: Rili Shrimp 2FT Office Tank - Part 2

If it's not fun, you are not doing it right !

Can you see the baby shrimp on the right side of the foreground shrimp ?

Feeding time !

Latest picture just taken 10 minutes ago from side view


Cory
20 Oct 2013

Oct 14, 2013

Aquascape: Rili Shrimp 2FT Office Tank - Part 1

Here's the documentation on my tank setup.


Here's the draft concept of the landscape. Horizontal but low. Rocky terrains with low level plants.

Species will be C. pygameus and Shrimps. Plant will be small leave plants. Don't know their names.








Stones and gravels added. Pairing of stones with similar design. Gravel is for planted and black.











Looking from the side, trying to take care of both front and back view since i like people to view it from both sides of my table.

Bottom right is the bubble counter. Filled up with filtered water to avoid deposits.
If done right, water inside will remain for long time. So far 1 week already.

Top is the 2 FT LED lighting. Not sure enough. Will continue to monitor.






Here's the 1L CO2 system. Has two pressure gauges with solenoid. I like the ease of setting them up. Did some fine tuning to understand how they work.

The left gauge of mine reflects the cylinder pressure with a lower valve to control it. Open more than enough for it to flow.

The right gauge again on this cylinder, reflects the pressure to the bubble counter. Controlling the valve just below it manage the bubbles. there is some lagging to watch.


Here's the reactor. I was a little worried that my overhang filter is not strong enough. However looking on the direction of the bubbles moving across from the bounce back current coming from the opposite end means the flow covers the entire area.

Fitting in the CO2 tube is a challenge as the pressure keeps pushing it out. Finally uses drastic measure of heating up the tube and freeze the reactor to tight fit them. Follow by a lighter across the overlapping areas.






Picture with plants. I got 3 mat size of the plants, cut them up to smaller pieces and squeeze them into the gravel. One thing i should have done instead is to wet the gravel a little instead of filling up to an inch. Will be much more easier to hold down the mat into it.

Corydoras and shrimps added almost immediately without the normal recycling. Total about 10 each.
Full length view of the complete tank setup

Entering into 2nd week. Overhang filter fits nicely on the left latch. The current manages to hit on the opposite right side and back.


Cory
14th Oct 2013







Oct 5, 2013

Shrimps Acclimatization

Thinking of setting up a shrimp based planted tank. Spend 30 minutes to blog and research my plan.

One key takeaway i found is the need to be prepared to acclimatized Shrimp as they are sensitive to water conditions.


My Notes : Planted, CO2, Small-Medium size tank, Plants, Shrimp species, Fish types, Tank layout, Food, Lights, Soil, Shells, Mini Net with long handle, external drip hanger, Wood/Stones, Mini Canister,Scissor - 14" - Curve, mini-net.

Few things to watch,

CYCLED TANK
The planted tank has to be ready and stable before buying Shrimps

INJURY
Netting rims are hard and pressing the shrimp against the plastic bag can cause injury

STRESS
Avoid transfer that expose the Shrimps to air
Especially when they are stressed. Moss to calm the Shrimps

ACCLIMATIZATION
Spend an hour to transfer tank water to the shrimp
Do not transfer water back to the tank to avoid external introduction

SAFETY
Shrimps molt when environment parameters change. During this period their skin is very soft.
Remove fishes that will attack them.

FOOD
Do not feed them till they have settled comfortably


Cory
5th Oct 2013


Sep 29, 2013

Taiwan Aquarium Expo 2013

This year we have about dozon 台湾正妹 to introduce the event. For your pleasure !


Cory
29th Sept'13

Nov 4, 2012

C. duplicareus youth

4 babies makes it to youth. No photo this time as i left my camera in Singapore.
Is a long time since i start interested in breeding again. Is kind of long learning curve.



Cory
4th Nov 2012


May 6, 2012

Corydoras duplicareus @ Day 20


Three more deaths from different hatcheries but none of them has red content in stomach from the red coloring of dry foods. I decided to stop Brine Shrimp feeds (maybe is too potent) just in case as many of them able to take dry foods already.

Day 20 fry with newly hatched
A few looks weak from refusal to eat so i expect few more deaths in the coming days. At the meantime, the adults continue to spawn eggs but not more than 10 each time with many of them infertile.






Swimming Upside Down
Oil Accumulation on the surface is another issue. Interestingly there is one hatchery that do not has. In it, there are frys swimming upside down suckering on the surface which probably explains the lack of it. Not sure the extend of impact to their health. One of the DIY hatchery was then modified to allow surface pass through with the main tank as an experiment. This is fun.




Cory
6th May 2012

May 3, 2012

Corydoras duplicareus @ Day 17

Corydoras Frys @ 17 days from Day One - Egg

Finally after a painful number of corrective actions, got to see the stage of free swimming frys eating external foods. Death rates have came down significantly to almost zero. The frys are much stronger and vibrant as well.

To date, i have at least 20 free swimming frys taking both brine shrimps and dry foods from 3 different hatcheries of different batches. About another 20 still taking york sac. And about a dozon left over eggs. Since cutting down on food to the adults, breeding has slowly ceased. This allow me breathing space to concentrate of growing the frys and a cleaner tank water.





During this period i have the hatchery expanded to cater for larger active frys. They are handmade of which the design i am proud of after many trials and errors. Is more fun than keeping the frys alive though the result is the goal.



Hatchery Requirements


- Will not topple
- Prevent foods from slipping through
- Side and under opening to support good ventilation
- Shock absorption internal and external
- Will not escape or eaten through gaps
- Easy to navigate the hatchery
- Easy to observe the frys
- Large enough room to support fry growth
- Cheap and easy to access materials
- Provide shade but avoid dead corner area
- Tank debris not easily stuck onto it



Cory
3rd May 2012


Apr 28, 2012

Ceramic Pipe Set

Ceramic Pipe Set


Was seeking a good shelter for my corydoras and found one in a LFS selling at relatively cheap price.
It has Breeder, Filter and Decoration purposes as well.

Finally has time to place it inside my two feet tank today. To my surprise, all my corydoras were quite afraid of it and keep themselves onto the other side of the tank. The juveniles will play around it but will not dare to step through the tunnels. I saw a foraging adult get spooked at the entrance when it unwittingly explore to the entrance and make a quick getaway.

This is incredible ....





Cory
28th April 2012

Corydoras duplicareus frys update

This batch of frys have high losses ~ about 75%. As now only about 6 lives on Day 13.
Few areas which i have taken note to improve subsequent batches as i re-learn ....

Issues with Frys

1. Infertile Eggs
Inexperience young female

2. Insufficient Eggs Collected

Likely eaten by other species of corydoras like C. atropersonatus who is known to eat their own eggs. I have seen a dying fry got eaten up today when i let it down into the main tank.

3. Dies inside it's shell before hatch
Occur in my first batch. Suspect too early retrieve of eggs and fungus.

4. Anti-fungus solution
Not really effective and eggs still go bad.


5. Unable to detach it's head from the shell.
Do not attempt to help remove it. At this stage the fry is very fragile and may cause more harm.

6. Fry refuses it or swirl around
Brine shrimps are not clean enough from salt. Rinse many many times.

7. Blood streak in the stomach
Looks healthy but will die suddenly. Suspect constipation from brine shrimp eggs.

8. Weak Frys and turn white
Suspect poor ventilation. I moved the floating hatchery nearer and ensure the sides are open to flow.

9. Feed too early
Will wait till Day 11 next time for closer observation.

10 Major water change
Even on main tank, 50% seems ok and will not impact frys. Cutting down on food to the adults will help.
Daily changes even small amount may helps.

11. Day 14-17 period, Frys are truly free swimming and observed to eat external foods.
This may mean prior weeks to avoid feeding unless necessary as rotting or fungus foods will weaken the frys.

12. Oil formation on the the surface
Hatchery without it tends to product more active frys. Just enough floating plants and ensure near to filter turbulence will minimize their formation.

This list will be updated subsequently.

Cory
28th April 2012
3rd May 2012 on point 11 and 12.



Apr 25, 2012

My Two - Two Feet Corydoras Tanks

Here's my latest setup of my two tanks.


Tank One :  Is a two-feet tank. There is two long sink-woods interlocking with some bush plants.

The wood underneath is a favorite place for them to hide when i am busy with the tank.

Air bubble pumps are used. Not in picture is a 58cm LED light on a timer and an auto-feeder hooked up.



Tank Two : Another two-feet tank with two small pieces of sink-woods separated.  Is a breeding tank currently and able to take a lot of punishing fish load so far. Some moss over the surrounding area and floating plants on top.

Have a plastic holder to hold used  filter stones and air pumps on both ends. I have another filter sponge added on one to increase filtering capacity. One feet LED light and a small planted lamp.






Cory
25th April 2012








Corydoras Origami

New species ? Nope. Is a hobby on Origami. And the species is corydoras schwartzi. I enjoyed the whole process of making it. 6 of th...