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Topic Review (Newest First)
07-16-2012 05:30 PM
oblongshrimp Its an O2 deficiency that has the sitting at the surface. I had a tank in which they would do that each morning until the light came on and the plants starting making O2. The tank did not have CO2 on it but it didn't have enough surface agitation at night to keep the O2 levels adequate.
07-16-2012 06:12 AM
beedee ahhh, ok. thanks, i'll toss one in sans soak.
07-16-2012 05:02 AM
mordalphus if you soak them first, they wont do a good job of lowering your pH, it's the tannic acid (tannins) that lower the pH
07-16-2012 03:48 AM
beedee thanks, i actually do have some IAL i can throw in there, i'll soak them first so the tannins dont murk up my water.

i took out the co2 setup, and put in a sponge with air-pump, it is kind of soothing actually, haha. the shrimp seem happy, and havent even come near the surface since i made the changes. i also put in one more layer of window screen to tame my light, so knock on wood, all should be good now!!!
07-16-2012 03:32 AM
tobystanton Alder cones are also good for lowering PH, its hard sometimes to get almond leaves to match your scape.
07-16-2012 02:43 AM
jkan0228 Add some peat or Indian almond leaves to lower ph
07-15-2012 04:56 PM
beedee thanks again everybody.

i cant believe i forgot to mention my tank is an 11.4g mr. aqua, the lighting is quite high, t5ho, 2x 18w bulbs, 10k....however, per Hoppy's recommendation, I do have two layers of fiberglass window screen in between the bulbs and the the splash guard to tame the light. the light sits about 4" above the water line, and about 12" above the substrate. i think i'll add one more layer of screen to further tame the light, and just scrap using the co2.

i am keeping red rili's in this tank as well, what is a good method of lowering the pH? (besides switching to aquasoil, lol)

i do have an airpump with a sponge filter, i just dont like the splashing bubbles that occur (my tank is rimless and i dont have a lid/cover).

i should also mention, my rili's are breeding like crazy, and the baby survival rate is really high. although, i know they aren't as sensitive as the tigers.
07-15-2012 01:23 PM
jkan0228 If you want maximum reproduction and health for your shrimp, IMO I'd quit the CO2, lower your ph slightly and get a sponge filter (for their simplicity and cheapness, they're the best at providing good O2). If you're not a big fan of somewhat ugly sponges in your tank, one option is to cover it with some ferns or moss.

Good luck
07-15-2012 10:47 AM
tobystanton A properly positioned spray bar can provide far more surface agitation and water circulation then a HOB could hope to provide.

I personally wouldn't feel safe pumping Co2 with the agitation from a HoB filter for shrimp, but It does work.
07-15-2012 07:36 AM
HypnoticAquatic
Quote:
Originally Posted by tobystanton View Post
You really need more then just a hob, it really helps to have a spray bar, I run co2 till my drop checker is yellow and the shrimps are fine because of the gas exchange surface agitation provides.
it really doesnt matter what type of filter he has as long as hes got good flow and surface agitation a spray bar really wont have much of a effect vs a hob, they both can provide surface agitation only main thing is the spray bar can tone down the current while keeping the same flow but thats about it.
07-15-2012 07:33 AM
HypnoticAquatic you can run co2 but you have to do it in SMALLER ammounts, this is why high light tanks dont do well with shrimp. one bps doesnt mean much as if its a small tank vs large tank there is a huge difference in volume of water and with doing a 1.5g wc im guessing is a 10g tank or something small, in that case you might have to go like 1bubble every 4 sec or so maybe even less if you want them to be breeding, this is why most people dont use co2 on these tanks.

mine is set @ 1bubble for 4 sec on a 20L and i can still see a drop in ph of about .4 i dont want much as i really want the shrimp, its just there to help out the plants even with that little ammount i still can see o2 being made and rising to the surface. fauna will show better signs than a dropchecker can tell you you just have to learn to read those signs, swimming at the top gasping for air is one of the last ones btw. if your tank is needing that much co2 your light is WAY to much for the tank & shrimp, then its time to down grade the output if that is the case. happy shrimping
07-15-2012 06:25 AM
tobystanton You really need more then just a hob, it really helps to have a spray bar, I run co2 till my drop checker is yellow and the shrimps are fine because of the gas exchange surface agitation provides.
07-15-2012 06:23 AM
beedee
Quote:
Originally Posted by tobystanton View Post
You can run as much Co2 as you want you just need surface agitation.
i do have the HOB on the side, which is providing nice flow across, and a bit of surface agitation. should i lower the water line so that the waterfall actually breaks the surface of the water?
07-15-2012 06:10 AM
beedee thanks again, i'll do another 1.5g water change!

i really appreciate the prompt replies.

should i just quit using co2 altogether then?
07-15-2012 06:09 AM
tobystanton You can run as much Co2 as you want you just need surface agitation.
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