Hi all,
I’m new to the hobby after being a freshwater addict for 10 years. Have set up a 100L tank two months ago and am loving it. Some interesting differences I’ve noticed between fresh and saltwater so far:
1) clean up crew actually cleans up!! In freshwater the plecos, snails and shrimp don’t actually eat algae they eat the microbes on top of algae and just make more waste. Imagine my surprise when I bought 2 trochus snails thinking it would be the same deal, next morning all my hair algae was gone!
2) the amount of life in the tank- I’m forever discovering new critters that I didn’t put in there or have no idea what they are that came in on live rock. I love researching these once they show up- most recently found a brittle star and a scud
Main downside
- in freshwater if something goes wrong, 90% of the time a big water change fixes it. In saltwater there are many other possibilities and biochem markers that may need addressing
- the cost! Have to buy RO water for every water change

I’m new to the hobby after being a freshwater addict for 10 years. Have set up a 100L tank two months ago and am loving it. Some interesting differences I’ve noticed between fresh and saltwater so far:
1) clean up crew actually cleans up!! In freshwater the plecos, snails and shrimp don’t actually eat algae they eat the microbes on top of algae and just make more waste. Imagine my surprise when I bought 2 trochus snails thinking it would be the same deal, next morning all my hair algae was gone!
2) the amount of life in the tank- I’m forever discovering new critters that I didn’t put in there or have no idea what they are that came in on live rock. I love researching these once they show up- most recently found a brittle star and a scud
Main downside
- in freshwater if something goes wrong, 90% of the time a big water change fixes it. In saltwater there are many other possibilities and biochem markers that may need addressing
- the cost! Have to buy RO water for every water change


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