phoenix44

really now? how much were they?

http://www.practicalfishkeeping.co.uk/pfk/pages/item.php?news=2126 Belly sliders' caused by egg disinfectants, says study A new study on the effects of fish egg disinfectants on angelfish has shown that the chemicals can greatly increase the chances of fry developing swimbladder disorders - incorrect temperatures have similar affects. Fish breeders regularly add disinfectants, including methylene blue, acriflavine, hydrogen peroxide and chloramine-t to batches of eggs - particularly those of egg-depositing species, such as cichlids - in an attempt to prevent the broods becoming infected by pathogenic fungi. However, scientists now believe that the chemicals are responsible for a disorder in the developing fish that prevents their swimbladder inflating correctly. Incorrect temperatures are also believed to trigger the disorder. The non-inflation of the swimbladder in fry results in fish that fishkeepers refer to as 'belly sliders' as they fail to become fully free-swimming. Scientists from Israel, who are to publish the results of their study in the journal Aquaculture, provide evidence to suggest that raising angelfish (Pterophyllum scalare) fry at 28C resulted in significantly fewer belly sliders that when fry were reared at 26C. The results also showed that methylene blue, acriflavine and hydrogen peroxide cause the condition. The authors said: "Eggs hatched in the presence of 1, 2 and 5 ppm methylene blue exhibited significant increases in swim bladder non-inflation (11, 9 and 33%, respectively; none in controls). Time of exposure to methylene blue was a key factor. "Exposure for up to 1 day post-hatch did not affect swim bladder non-inflation, but exposure from 2 days onwards significantly increased swim bladder non-inflation. "Hydrogen peroxide at 250 ppm significantly increased swim bladder non-inflation (65% comparing to 27% in the control). Higher concentrations resulted in 100% mortality. "Exposure to acriflavin at 2.25 ppm, but not 1.25 ppm, significantly increased swim bladder non-inflation (75 and 52% respectively; 20% in controls)." Chloramine-t appears to be the safest egg disinfectant for use on angelfish and did not significantly affect swimbladder non-inflation: "Chloramine-T did not significantly affect swim bladder non-inflation. Treatment with methylene blue and acriflavin, but not chloramine-T, produced significantly different frequencies of swim bladder non-inflation morphologies compared to control fish." For more details see: C. Sanabriaa, A. Diamantb and D. Zilberga (2009) - Effects of commonly used disinfectants and temperature on swim bladder non-inflation in freshwater angelfish, Pterophyllum scalare (Lichtenstein). Aquaculture. In press. http://www.practicalfishkeeping.co.uk/pfk/pages/item.php?news=2126

they are not ALtums. he got them off a person in AKL. __________________ What sort of fish did you like? congo tetras?

6 bucks is pretty much stock standard for dems if you get them through a breeder.

any new developments? Will u be putting drift wood in the tank?

oh. that's also small

you have got to be kidding like pinky fingernail or thumb fingernail?

That's 2 cm That's tiny! and awesome all at the same time. are they playful?

It is a basalt mix gravel.

pALmy? Really?

Awesome, let me know if you would like to borrow that light. I can spare it for a week or so. Im presently using it as a study lamp

furan?

oh no. hate to ask... but have to... what happened? Would you like to borrow my T5 HO 2foot light for a week or so? That will help your plants. :bounce:

aw. That's tragic. there is a wealth of information here, and more info should always be welcome.

PWNED :bounce: :bounce: :bounce:

pH is at 6.5 today. just got back from work. im going to do small water changes over the next few days. I added a cuttlefish thing in the water today. They seem happy and active now, ate their spirulina flakes with much glee, as they went hungry all day today. I also got some marine white gravel thing so ive put a bit of that in the filter too. hard water is good right? Im certain about the concrete, I remember asking about the block when i first moved in - he said it was just normal concrete that he made mainly just for keeping as weights for around the site jobs. Ryan - lol.. i too want the pH to be higher (makes sense after what you said on sunday). I just have one more assignment due in, and should be free on sunday, so perhaps we can sort something then.

Just read the whole thread. what an utterly awesome little fish! RIP stumpy

you mean gilly? ______ well done m8. they are such a nice fish.

yes. that, and price parity and interest rate parity. I did an entire finance paper at massey based only on this topic! best paper ever.

yes. thought that about the concrete. tested the pH according to weight of concrete to amount of water. I want the pH to be about 7 and then i shall tinker with it if i have to, but to be honest as long as they stay alive i am satisfied. PS- it was not my pavement. landlords practically own the street here, as they are builders, lots of building stuff found here... lol... i used a rock like a caveman to get my concrete in good size pieces. it should make great media too lol :lol:

ive got some lying outside the house. now to find that hammer.

is it all that cement stuff in the tank that helps?

what is the pH in your tank? pH is presently doing some rising.

pH should increase then (NH4+) I think... oh well. its a temporary setback. should be sorted soon. :bounce: all part of setting up a new tank I suppose.

the water in the bags they came from was pH6. its not a biggie. Its mainly why my S. american fish were always so happy. the water in the tap is pH7.0