review and all,
I stopped daily dosing Excel (at exact Seachem recommended dosing) in my shrimp tanks after considering the advice of many on this forum and coming to the conclusion that the benefit (not sure I was actually seeing any) did not outweigh the risk. Since stopping daily dosing, algae doesn't seem to be any better or worse. The much higher day #1 dose on the bottle does seem to be effective against BBA, from my experience, especially if spot dosed directly midway during a water change with low water level and no water movement (filter off) for 10 mins or so. The daily dosing at the lower dose does not seem to have any additional benefit regarding algae control in my tank vs just using the one off higher dose when needed. Some have suggested that it is the daily dosing that potentially has a long term, cumulative negative impact upon some / many / all livestock. That seems to make sense to me.
The question is where your priorities lie. If it is having a pristine planted tank and wanting to throw everything possible at it to achieve that, then feel free to use Excel daily following Seachem's instructions. On the other end of the spectrum, if your priority is growing a healthy, breeding shrimp colony, then most would agree to avoid using Excel. And in the middle is the grey area that many people will dip in and out of.
Originally Posted by underwaterview
nice video but some of it seems a bit dangerous to me? I suppose I may remove my worst offender log and spray/soak w h202.
Search for "Mark's Shrimp Tanks H2O2" on YouTube - another useful video on using H2O2. Mark recommends regular use of hydrogen peroxide in shrimp tanks with various benefits including controlling hair algae. I've been using it in my shrimp tanks following his suggested dosing (1.5ml per UK gallon = 4.5 litres) and can confirm that it has been perfectly safe for shrimp, MT snails (including tiniest babies), Christmas moss and chilli rasboras.
Some say peroxide is a cheaper alternative to excel and is safe if you donít exceed 1 mil per liter dosage as recommended in the video.
1ml per litre seems a pretty high dose. That would be 4.5ml per UK gallon, so 3x higher dosing than Mark recommends in the above video. He isn't specific about excatly how and why he came to his recommended 1.5 ml /UK gallon dose for shrimp tanks, but he says he experimented with increasing doses until he noted unusual behaviour in his shrimp (at 2ml/UK gallon from memory), and then backed it off to the 1.5ml / UK gallon from there. He also talks about having a strong enough dose to kill off the lower level organisms you want rid of, but not the higher level ones you wish to keep.
H2O2 seems pretty effective at this 1.5ml dose and so it seems hard to justify the need to triple that dose up to 4.5ml. The stronger the dose, the higher the level of organisms that it will harm.
Another possible option to investigate: Google Sochting Oxidators. These are small devices that you fill with H2O2 and slowly release it into the aquarium water over the course of several weeks with the idea of boosting oxygen levels in water and generally keeping the tank healthy (still looking for specifics about what and how they are supposed to do this). I've been trialing them in my shrimp tanks for the past few weeks; the shrimp seem happier than ever, but I can't conclusively attribute that to the oxidators. At worst, they form a handy table for my newborn shrimplets to feed upon which makes them easy to watch (two little guys sat up there now feasting on some BacterAE!) and proves to me their safety in a shrimp tank.
Note all the advice to use food grade
hydrogen peroxide. I haven't been able to source this here in Singapore, but the 'pure' 3% H2O2 from my local chemist seems fine. The point to note that some hydrogen peroxide products could have other things added, so make sure you only use pure H2O2.