Hi Guys,
I'm Julian, I'm 31 from London!
I've been a freshwater planted tank enthusiast for about 8 years now and I like to think I have an advanced level of understanding of freshwater environments so I'm looking for my next challenge.
I'm a bit bored of planted tanks so decided to join the salty-side.
I have a 30L (7 Gal US?) Aquaone nano which has been sitting empty in my garage for quite some time so I figured I'd put it to use.
My plan so far is to have white Quartz sand as the substrate, some live rock (already cured by my LFS), eventually some soft corals, 1-2 Clownfish and maybe a hermit crab and/or a shrimp of some variety.
I've been doing lots of reading from different sources so I've read a lot of conflicting advice. It's evident from my planted tank experience that people get stuck into a certain way of thinking, unable to accept that different methods can achieve equal or better results, no doubt it's the same in the Marine world. With this in mind, I'd like to hear your opinions on a few questions/observations I have:
1. My tank has compartments in the back to store external equipment, sponges, bio-balls etc. I've read that filter media is not necessary in a nano as the live rock will act as the main source of filtration and anything else will just be become a "nitrate factory". I believe I need to have 1kg of live rock per 10L of water (3kg for 30L), so can I take out the sponges/bio-balls or should I leave some in?
2. Most of us in the planted tank world believe hobby grade test kits are absolutely useless for measuring anything, the only way to properly measure water parameters is using lab grade equipment. Also, once your tank is cycled, unless you make any significant changes to your tank, as long as you keep up with weekly water changes and carry out regular filter maintenance, testing your water becomes unnecessary. I'm reluctant to buy any test kits for these reasons. My plan is to put in the substrate and the already cured live rock and leave it for about a month or 2 (without any water changes - is this wrong?) before I put in any live stock. Once live stock has been added, I'm hoping the nitrite/nitrate/phosphate levels will take care of them selves with weekly 50% water changes.
3. Skimmers are not needed in nano tanks if you carry out weekly water changes. I could fit a skimmer into my tank but I'm going for the minimalist look and wouldn't want one poking out of the top. The tank has a glass cover that goes over the rear compartments and would need to be cut in order to accommodate a skimmer. I'm used to performing weekly 50% water changes on my 100L tank so I'm confident I can stick to this with a 30L tank.
4. After the tank is cycled, I'd like to get some beginner soft corals. The light I intend to use is a TMC Mini 400 LED (6500k). This doesn't have any blue actinic lights, but apparently that's not important. The manufacturer states that this light can be used for Marine or Planted tanks and I've seen other people use them for either purpose. How long should I keep the lights on for? In planted tanks, most algae problems are related to too much light/having them on for too long, does the same apply for Marine?
5. Is surface agitation a big deal in Marine tanks? Obviously you need to have a little to help with gas exchange, but some Marine tanks I've seen literally have waves going across the surface. Apart from simulating a natural environment and keeping water oxygenated, what other purpose does this serve?
6. When making saltwater, if I need to add more salt or more water to reach the right salinity levels, how long do I have to wait between testing it with my Hydrometer? I'm guessing at least an hour?
I really appreciate you taking the time to answer these questions - no doubt similar ones have been asked before but it's very time consuming to find answers to them all, especially in a hobby where things change all the time, so thank you in advance.
I'm Julian, I'm 31 from London!
I've been a freshwater planted tank enthusiast for about 8 years now and I like to think I have an advanced level of understanding of freshwater environments so I'm looking for my next challenge.
I'm a bit bored of planted tanks so decided to join the salty-side.
I have a 30L (7 Gal US?) Aquaone nano which has been sitting empty in my garage for quite some time so I figured I'd put it to use.
My plan so far is to have white Quartz sand as the substrate, some live rock (already cured by my LFS), eventually some soft corals, 1-2 Clownfish and maybe a hermit crab and/or a shrimp of some variety.
I've been doing lots of reading from different sources so I've read a lot of conflicting advice. It's evident from my planted tank experience that people get stuck into a certain way of thinking, unable to accept that different methods can achieve equal or better results, no doubt it's the same in the Marine world. With this in mind, I'd like to hear your opinions on a few questions/observations I have:
1. My tank has compartments in the back to store external equipment, sponges, bio-balls etc. I've read that filter media is not necessary in a nano as the live rock will act as the main source of filtration and anything else will just be become a "nitrate factory". I believe I need to have 1kg of live rock per 10L of water (3kg for 30L), so can I take out the sponges/bio-balls or should I leave some in?
2. Most of us in the planted tank world believe hobby grade test kits are absolutely useless for measuring anything, the only way to properly measure water parameters is using lab grade equipment. Also, once your tank is cycled, unless you make any significant changes to your tank, as long as you keep up with weekly water changes and carry out regular filter maintenance, testing your water becomes unnecessary. I'm reluctant to buy any test kits for these reasons. My plan is to put in the substrate and the already cured live rock and leave it for about a month or 2 (without any water changes - is this wrong?) before I put in any live stock. Once live stock has been added, I'm hoping the nitrite/nitrate/phosphate levels will take care of them selves with weekly 50% water changes.
3. Skimmers are not needed in nano tanks if you carry out weekly water changes. I could fit a skimmer into my tank but I'm going for the minimalist look and wouldn't want one poking out of the top. The tank has a glass cover that goes over the rear compartments and would need to be cut in order to accommodate a skimmer. I'm used to performing weekly 50% water changes on my 100L tank so I'm confident I can stick to this with a 30L tank.
4. After the tank is cycled, I'd like to get some beginner soft corals. The light I intend to use is a TMC Mini 400 LED (6500k). This doesn't have any blue actinic lights, but apparently that's not important. The manufacturer states that this light can be used for Marine or Planted tanks and I've seen other people use them for either purpose. How long should I keep the lights on for? In planted tanks, most algae problems are related to too much light/having them on for too long, does the same apply for Marine?
5. Is surface agitation a big deal in Marine tanks? Obviously you need to have a little to help with gas exchange, but some Marine tanks I've seen literally have waves going across the surface. Apart from simulating a natural environment and keeping water oxygenated, what other purpose does this serve?
6. When making saltwater, if I need to add more salt or more water to reach the right salinity levels, how long do I have to wait between testing it with my Hydrometer? I'm guessing at least an hour?
I really appreciate you taking the time to answer these questions - no doubt similar ones have been asked before but it's very time consuming to find answers to them all, especially in a hobby where things change all the time, so thank you in advance.


, to learn about care of your tank and about pests and fish diseases, and how to take care of your corals , but it can also drain your bank account and maybe a second mortgage on your home ,
I see you have been researching and have found some likely answers...and have lots of questions, of course. I believe that you will be challenged with a 7g tank, but don't let that stop you as it is definitely possible to have a successful small tank. As far as conflicting advice, that's normal in this hobby since there are multiple ways to approach reef tank setup and care.

