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I just purchased these today after people say water lettuce is good for shrimps and for the water quality, does these information refer to all variation of water lettuce. These were rather expensive, but the quality seem really good, I think these are a drawf variation, does anyone know what type these are, the photo show are the actual ones I purchased, but have not been placed into my shrimp tank yet. Size is about 1.5 inches.

They're very pretty. I wonder how they will grow in your tank. I have dwarf water lettuce, but the leaves on mine are not that tight. The shrimp love the long roots, and I rarely see more than 75% of my shrimp, even if I give them something they want to eat, because I think they are all just hanging out eating in the roots of my lettuce and salvinia. ? Just be ready to prune. It grows like a weed.

the 50W heater was the smallest available i could find and its rated at 10 - 30 liters. the house i moved from was built in the 1930's and needed love to say the least and the tank heater managed to maintain 20C with minimum heating from the house. The house we've moved to was built in the 70's and the guy before us extended it and did all the cavity insulation so it keeps its heat really well. what its going to be like in the summer we'll wait and see. with regards to the TDS i think there just might have been some stuff attached to the pen because when i tested the jug before i put in the tap safe it registered 0 on both pens, i put in the tap safe just to see what would happen and yeah its now registering 5ppm. i dont drip acclimate i pour in over a baffle thats why i temperature adjust, and i heard somewhere thats fine if your doing up to 25% water changes? im going to do a 2 Liter water change later today with remineralised water to roughly 200ppm and ill give you the results of both the remineralised water and the updated tank conditions. but i will skip adding the bio boost this week. That should give me 3 water changes between now and when i go away. Good news is i haven't lost any more shrimp since the last 1 that i know off and i have seen evidence of successful molting. i can usually see between 5 & 9 shrimp at any 1 time and my experience so far is you can see between one third and two thirds of your colony at any 1 time in a heavily planted tank.

Good to hear its arrived already so you are set to go..... I expect the TDS pen that came with it is the accurate one, it is after all ZEROwater. JayC has pointed out to me in the past that you don't need to use a water conditioner with RO water (which this is), though I used to use the conditioner BEFORE filtering the water as that meant the filter would also remove the conditioner. In short, the conditioner itself will raise the TDS and you don't need to use a conditioner - maybe you got the 6 reading after using the conditioner??? I also have 2 TDS meters but both of mine match and read 000. The filter works exceptionally well but when it is exhausted it happens very suddenly, ie it goes a long time on 000, maybe a few more on 001, a few more one 002 and then I change it on 003 as it will start going up with each litre you filter - hope that makes sense. The good thing is TDS is so easy to test just using the meter. IF you are dripping the NEW water slowly into the tank you also don't need to worry about the temperature difference as it goes in the tank so slowly and the heater will do the rest? Looks like you are all set but just ask if there are any questions etc. Simon