Wowee, congrats! Once one starts going in, the rest soon follows!Motörcrab wrote:We noticed our first diver this morning! Mephistopheles has been hanging out pool side on the upper platform at the very top a lot. I saw him go down the first ramp partially a few times but never fully submerged.
Last weekend I modified the ramps with plants zip tied to them for more gripping area. Perhaps they were unsure of being able to easily get in and out of the pool. I don't know, crabs are weird.
Last week I did my first partial water change as well. About 1/2 gallon out of around 2-1/4 gallons.
My ammonia levels seem to have dropped to the good level. 0.02ppm. Nitrates are high but have lowered from 200 down to 160. The Nitrites are still really high at 10. I believe this is means I am still going through the water cycling process.
Hopefully once the cycling is completed the activity level increase too.
I already purchased a 2.5 gallon tank, silicone, and filter to begin the freshwater pool. I'm looking for a different color stones for the back and bottom. Does anyone know what stone types are not ideal due to raising pH levels?
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Just a quick heads up, I would preform a good 80-100% waterchange due to those nitrates. High nitrate levels arent great for fish, and since crabs have very similar biology, I wouldnt be surprised if it was any different. Usually you want to keep it below 20ppm (40 ppm is usually a max, and anything over 80 ppm is considered toxic by many) so a good waterchange would really keep those nitrates low. (High nitrates can also affect cycling time according to some, stalling the cycle!)
Honestly, I wouldnt be too worried about stones causing a rise in pH with crabs - if anything, I'd encourage it since it usually goes hand in hand for high gh/kh; high levels of calcium in there! Since your not keeping fish (or inverts) in the freshwater pool for any lenght of time, it shouldn't be an issue.
But to keep it simple, consider using inert gravel? Or my personal fav, sand. Sand can be a pain to clean, but once cleaned it very easy to maintain since all the waste sits on top making it very easy to siphon out. (Black blasting sand and silica sands are two good choices, I've used quartz sand in the past and love it as its very inert - silica tends to cause diatoms..... if you want a bit of calcium in your freshwater pool - and marine pool, if you want to change it out for sand - I'd go with coral sand. I love coral sand in my marine pool, very easy to clean and buffers the ph to around 7.5-8.
Do you plan on keeping plants in the freshwater pool? Are you also using a sponge filter for the freshwater?
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