Breeding Angelfish

[dean]

Hi All

My 4 fooot tank has the below info

ph 6.9
gh4
kh6
cl2 0
no2 0
no3 25

2 pairs of angel fiosh and 4 panda garas are in the tank with plants

The angel eggs keep going white, i know this is happpening because of the kh being to high. WWhen i try and do a water chanmge by putting ro water staright into my tank, firstly draining off half the water, but the kh still does not reduce to the desired 3kh ??? Does anyone no why i cannot get the kh to stay down ???

Thanks

Dean

 

[mattlee]

are you 100% its down to the KH of the water...?

sometimes 2 female angels will spawn like a mixed pair but obviously the eggs are not fertile therefor going white. also how old are the angels? as if its their first few times and they arent very old they may not be mature enough to fertalise the eggs.
i have a breeding pair of angels that breed happily in pH 7.6-7.8, medium/hard tap water every 2 weeks or so. i get very few white eggs, maybe 5-10 out of the hundreds that are laid that the male may have missed when fertilising them. i just use normal tap water not RO or anything specialist and do just fine, the parents raise them up to the free swimming stage then if i want to grow some up i catch and seperate from the parents.
sometimes you can mess too much with things and delay or prevent spawning, most angels are tank bred these days so dont require very low pH and very soft water.
i also breed corys in the same water very successfully too and keep discus.

 

[Balloons&killies]

ya i dont think it's the kh it might just be 2 females or like said in the other post they might not be old enough.

 

[Tolak]

Your kH is fine. It could be two females, fertility problems with either the female or male, water flow near the spawn preventing proper fertilization, or a bacterial issue. I would try pulling a spawn, and adding it to a hatching tank with some antibacterials in the water. Often what is thought to be a fertility or fungal problem starts with a bacterial issue. You see the fungus, and think it is a fungal problem; you can't see bacteria. The fungus, or white eggs is a secondary problem to the bacterial issue.

Acriflavin is a good antibacterial to start with, as is hydrogen peroxide.

 

[dean]

Hi everyone

Thanks for your replies,i have never had this problem before with my angel fish !! What is strange is that i have 2 pairs of angel fish who have bread at each end of the tank.The eggs from the the first pair always turn white so when i noticed the other pair spawning(for there first time) i took the leaf out and put it in a sepertae pot with methyl blue.The eggs still turned white.When i do a water change, i spyhon off a quarter of the tank of the old water and then fill it up with ro water....Surley both pairs cannot be in-fertile. I have had the methyl blue for a couple of years, maybe it has stopped working....I want to start breeding discus so i need to get this right first

Forgot to say that the tank has been up and running for years

 

[Tolak]

You may need something stronger than meth blue.