100g plunge, need advice/info - The Planted Tank Forum
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post #1 of 6 (permalink) Old 07-28-2011, 08:33 PM Thread Starter
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100g plunge, need advice/info

Hey everyone I am more than likely picking up a 100g setup today or tomorrow, and was wondering from people with first hand experience with such a large tank, the difficulties and costs of running such a large tank, I already have many 20gs but nothing above in capacity, I'm aware of the cost for my startup and the fish stock is coming from all my other tanks, all are very compatible, south american fish+ 1 king betta, I have someone I wish to buy wood from and I have my substrate, filters are included but I don't trust just two canisters so I'm buying an fx5 or comparable filter,
lights I have no idea what i am going to do but I want med-high light as my co2 setup is top notch.
not sure if I need heaters, none of my small tanks do but would be nice to be certain,
can i start this with 30g of mature aquarium water and 70g treated tap? or 50g treated tap and 20g ro and 30g mature?
what are water changes like on a tank this size? assume I am not dosing fertz and filtration is above par with loads of plants,
I would like to do them weekly as I don't find water changes to be a problem I like doing them,
Should I top off with ro/di?
should I water change 100% ro/di? or mix it with tap?

It is a lot of question but I just want to make sure I'm not going to be over worked and give up on it I want to know ahead of time, also this tank is replacing all but my breeder/qt and a saltwater.

Any experiences shared are very well appreciated
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post #2 of 6 (permalink) Old 07-28-2011, 09:47 PM
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Mature water has no beneficial bacteria in it at all, so the only thing adding water from another tank bring over is nitrates. Gravel, filter material, plants all are loaded with BB and are great for jump starting a new tank. The RO/DI issues depends on what you plan on keeping in it, but at a 100g its going to get expensive quick using bottles of RO water all the time. Unless you need a low pH for crystal shrimp or something, I would go tap water or buy a RO unit if you need RO water but I would use a smaller tank for crystal shrimp if your intent is to breed them.

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post #3 of 6 (permalink) Old 07-28-2011, 11:32 PM Thread Starter
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I only plan on starting with ro/di after I will be using aged and treated tap for the water changes, I would love discus in this down the road but right now its going to be filled with neons cory cats bn plecos and bloodfins, and some rams thanks for clearing up the mature water thing, I prefer fish =] shrimp are added for clean up and on accident food, other than that I have a separate system for them. thanks again for the info
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post #4 of 6 (permalink) Old 07-29-2011, 02:13 AM
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Water changes are a cinch as long as you have a long hose so you can dump the water outside or to a tub! I really like all the room on top to start the siphon by filling a loop of the tubing, letting it get over the rim of the tank then putting the end of the siphon back into the tank. I use tap water, if you use RO you will want to use a pump to get the water from your storage bin into the tank.

As for lighting, I do love my FNI metal halides. They would give your CO2 system a good work out! But really you only need 2 bulbs across the tank if you use T5 HO.

How are you supporting your plants with only light and CO2 and no fertz? Heavy fish load?
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post #5 of 6 (permalink) Old 07-29-2011, 02:42 AM Thread Starter
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heavy fish load and fertz in soil, osmocote+ and dry fertz under the sand and dirt, will eventually dose but would prefer not to for a while, as far as the lights i think i plan on having an island of plants and a large portion being open to swimming/feeding, getting it from my brother tomorrow most likely and will start a build thread, will take quite a while to get it to where i want is as i forgot I have rent to pay saturday =p but will have basics, ie filters sand soil fish and some plants, rescaping will not be fun but don't think i can pick up the stone and wood I need. also if someone would trade their bloodfins for my neons I have 35 of them and would accept 20 bloodfins for them, they are very healthy and happy but think i may like the more active bloodfins a bit more. I'm kind of excited hope the lights it has will atleast grow some swords and vals
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post #6 of 6 (permalink) Old 07-29-2011, 07:02 PM Thread Starter
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bump, getting it in a few hours, atleast I hope kind of intimidated =p

anyone have ocean clear canisters they can let go for 40 a piece? and maybe a pump to run them would be nice
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