Do you think it’s worth just cutting out the fertilizer completely for a few days and trying it without?
yes..
just dim the light aswell
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Hi
Is that stainless steel mesh in the tank ? just to ask but what is the brown staining on the mesh ?
Did you use the mixed solution I sent you? Did the fish react with that? If you didn't use it try using that until we find out why your mixes are going funny.
Can you remind me how much you are dosing? How long the photoperiod is and the CO2 on/offs.
I have a 140ltr setup pretty similar in terms of size. If I were running your tank I would probably be using circa 6-8ml daily, 8 hour photoperiod and CO2 would come on 1 hour before lights and off 3 hours before the end of lights.
On your mix, can you use an old squash bottle or something? Change the container you are using. 1 litre squash bottles are ideal. I mix it in the same bottle, close the lid, keep shaking andn open/close the lid to release any pressure, until it is all mixed in.
Try using your tap water instead of the DI that you bought. I have had some DI before that wasn't right.
Obviously something going wrong if the ones I sent you are still black. They were made up at the same time as the packs you have used there so only difference is the container and the water.
I'd check into that a bit more..It is yeah.
No idea I thought that too. Rust was my guess but it’s stainless steel...
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Will mix up a new batch again yeah - use your original ones you mean or?
I will use a closed bottle.
Yeah odd I have two bottles of it but if it’s sat in the shelves for ages perhaps? Not sure will use tap water next time...
Fish still not right but other thread I have going we have realized my water is very soft indeed so minerals could react with it easier and change params.
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I've posted in your other thread. I have no solution as such. Just your water report confuses me. You have ultra soft water (2dKH) yet your average Ph is 8.42 (drinking water quality.) I've linked to your water report in there so someone can help you on that one.
I'd check into that a bit more..
Just another thought. I see you mention you are autodosing. Would you be able to manually dose from the bottles and syringes I sent you. Just to make sure that you know exactly what is going into the tank. If you can't dose daily then just dose whatever day multiples, so if you miss 2 days then dose 3x on the 3rd etc.
I also read that in your other tank you had no problem with the water. The main difference I can tell between the tanks other than size is filtration. On the other tank you mention you are using a large filter and on this one you are using a sump. I guess substrate could also be a factor. This 600 does seem to have a very thin substrate across the carpet area. I am assuming you are using the same type of rock in them both as they look similar.
I think what we are looking at over the 2 threads are 2 different problems occurring at the same time. I don;t think they are related. The fert problem you are having is happening outside of the tank and the fish problem seems to be due to the tank balance in that tank. My suggestion above is more to try and help alleviate how the tank condition gets while you sort out the problem with the fish especially if the CO2 is going off for a while.
I would think the fish problem is one for the water chemistry experts on here, seeing as they are still reacting this way with the CO2 off. Water chemistry is not my specialist subject by a long way 🙂
if the stainless steel doesn't have sufficient chromium in it it will rust. Ensure you buy marine grade mesh mate as this will have the required chromium to prevent the rusting/ staining.