I have some big news to tell you all.
My Zipper Loaches just killed a Bristle Nose. They also killed 4 Harlequin Rasboras. Damaged 4 Red-Line rasboras. Chase SAE's to no end. I don't know what is up. They have just turned to killers. They have also chased my aggressive Dwarf neon Rainbows. So right now the all the fish that have been hurt an chased are in a big ball of fish at the top of the tank, trying to get away fro the Zippers.
The tank they are in is 36 inch long 30 gallon tank. It has logs lots of rock work and plant cover. So I can't see any problem with the tank.
waiting for the water test to come out.
I am using liquid tests.
There are three Zippers. The tank temp has some how gone up from 26'c to 29 'c. Could that be why? I don't think so they killed 7 Kulie Loaches in a 50 gallon tank with the temp at 27'c.
Yes I have seen them do it. The just fly out from the rocks and smash strait in to the fish. then start eating their fins.
The water test comes out with.
pH6.3 Always at that pH.
Here is the pic,
I have 4 tanks sitting around. but they will need cycling.
My Zippers are with young fish and small gentle fish like Threadfin Rainbows, guppies, Cories, Hillstreams, . . . . This is a temporary tank for fish to grow up.
http://www.loaches.com/species-index/ac ... itis-botia
Your fish may look more like this than mine do.
All I need now is some help with the catching of these little fast fish.
How long have you had them?
My larger one is shy. My smaller one is very feisty, but not aggressive. She chases fish from her favorite spot, but doesn't bite or injure them. She also eats with her tank mates and plays with them. I don't see aggression in either.
I didn't see on the species description whether they are aggressive or not.
I am sure the experts will know what to do and why this is happening.
i am afraid your water test readings dont look perfect to me. you should be seeing some nitrAte, even if its a very small amount. how old are your test kits (and did you follow the instructions exactly right? its easy to time the wait wrong, or not shake the test for long enough, which will give the wrong reading)? last time i was unsure if my tests were reading right, i got the water tested at the LFS too to check.
good luck with catching the fish!
If the split is about 50/50 (half the fish-mass is staying in the old tank, and half is moving to the new tank) then I would simply move the established filter to the new tank, and put a new filter on the old tank. There is a lot of bacteria in the gravel, on the decorations and so on. Perhaps only 50% of the bacteria is actually in the filter.
If you half fill the new tank with some of the water from the old tank then top off both tanks it will be like giving them a big water change.
If you cannot catch the zippers, catch everyone else, and let the zippers have the old tank, and move the other fish to the new tank.
Heavily planted tanks can show 0 ppm nitrate, but the concern is a valid one: Seeing 0s for ammonia and nitrite is good. 0ppm nitrate does raise the question of why, and old test kit is often the reason.
Happy fish keeping!
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