Thai Silk has fungus maybe?

[RD.]

Yes, it can happen, I have no disagreement there, but this usually takes place when one is underfiltered (lack of bio filtration volume), or has a tank where the bio bacteria is not well established. Or as Big_One suggested, the person performing the water change was an idjit, & added straight untreated tap water where the chlorine/chloramine killed the bio bacteria.

As I stated originally, in an established tank, with established bio filters, 90% water changes will not cause ones tank to cycle.

I've swapped out established filters, placed them on a new set up, with 100% fresh tap water (treated with proper water treatment of course) and never had a hint of a cycle. Been there, done that, more times than I can count.

 

[luohanfan]

"I've swapped out established filters, placed them on a new set up, with 100% fresh tap water (treated with proper water treatment of course) and never had a hint of a cycle. Been there, done that, more times than I can count."
I have done the same thing, or used material to seed a new filter..
I wouldnt say there is NO cycle, but the process is sped up for sure..
(in this case actually aided by stocking the tank immediately)

 

[RD.]

In my case I can state with 100% certainty that there was NO cycle.

I actually monitor parameters very closely on new set ups like that, and always maintain 0.0 mg/l NH3. The key is simply making sure that the new bio load balances properly with the established bio bacteria. It's something that I guess you just learn how to do over many years of setting up new systems, and is difficult to explain with written text.
There is a fine line for sure.



I suppose by now we have bored both the OP & his fish to death. :lipsseale

 

[luohanfan]

My apologies to the OP for hijacking the thread..
Although our conversation has been long winded, im sure it will give some people food for thought, as not all would know the consequences of not properly treating water..
and a few other factors discussed..

 

[Water]

My apologies to the OP for hijacking the thread..
Although our conversation has been long winded, im sure it will give some people food for thought, as not all would know the consequences of not properly treating water..
and a few other factors discussed..

Its quite simple. If a tank has been cycled and established for over a couple months, then it shouldn't be able to lose the cycle no matter how much water you take out.. Unless of course you take out all the water or don't treat the water.

 

[pattonzhang]

i like thai silk so much

 

[luohanfan]

Its quite simple. If a tank has been cycled and established for over a couple months, then it shouldn't be able to lose the cycle no matter how much water you take out.. Unless of course you take out all the water or don't treat the water.

It's not quite that simple...
But anyway.........

 

[H]-[H]

Since you guys are talking bout technical stuff, how long can BB survive in the filter when the filter is not running?

 

[luohanfan]

I cant give you an exact answer for that..
But it would depend on oxygen, and food supply for the BB colony..
I know people that have had trouble within a couple hours..
Thank God i havnt had any problems like that..
Although i have have lost power for about 2 hours without any signs of problems..

 

[BIG_ONE]

i like thai silk so much

Ahahahaha, that was the best answer I have ever seen on this thread after what is going on here. I like Thai Silk too, but not so much.