I feel that to confirm if the rocks are suitable, best is to test separately with your test kits before putting them into your tank. But size of tank with different amount of water may also varies the test.
I have tried the grey/white veins rocks in my shrimp tank and the ph went over 8. Not sure will it drop over time cos I removed it after my shrimps start popping off 1 by 1.
I bought the lava rock with holes from c328 and mineral rocks from Borneo wild to replace it. Ph went to 6. Not exactly sure if the lava rock is neutral or the mineral rocks from Borneo wild brought the ph down. Don't want do a test again as I don't have much shrimps left to experiment. Anyone can advise on the lava rocks with holes?
I feel that to confirm if the rocks are suitable, best is to test separately with your test kits before putting them into your tank. But size of tank with different amount of water may also varies the test.
Got this from a local landscaping company, he also do not know what rock is it. Tonight going to use the vinegar test to check whether it is inert.
Closer look of the rock
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"L" plate gardener
Make sure you wash and scrub the rocks well as there may be bugs/critters/eggs hidden in it or other "stuff" absorbed in it which may affect the water parameters. Especially if they have been previously used as base substrates in outdoor gardens or landscapes (quite common to use lava rocks like these), they may have absorbed alot of chemicals and pesticides over time.
The vinegar test is good but the best method to find out is to soak it in a container of dechlorinated tap water for 1-2 weeks (simulate the conditions in your tank) and measure the before/after results, see if there are any significant changes in the water parameters.
any bro know of other worth-to-visit plant farm/aquarium in this area beside Teo's and QIan Hu?
Is guppy centre still there?
FYI, 40 Jalan Lekar closes at 5pm daily..found out the hard way.
Anyone know the operating hour for the rock distributor?
Been there few weekend but was closed.
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open 8-5 pm Monday-sat.Sunday close.
Beware CNY is around the corner
Thanks for the info
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Thank you UA for posting this, and all the others who helped with the opening hours of this place (albeit the hard way, sorry about that). This is great. Will be visiting after the holiday period.
Are the lava rocks sold at this Jln Lekar place suitable for planted tanks?
I spoke to the staff there and he did mention there were people who bought the lava rocks for their aquariums too... i guess you just have to rinse, wash and soak them throughly to remove any accumulated dirt or possible chemicals/pesticides that may have been absorbed from their previous usage (especially likely since lava rocks are commonly used in outdoor gardens).
Thanks bro UA. Good to know. I am planning to lay some of these below the substrate.
If you are going to lay below the substrate why not just get lava chips from LFS? Save you the hassle of going there and possibly having to break up the rocks and i would imagine more thorough cleaning
Thanks for the good suggestion. Also planning to get some bigger ones. Agree smaller better to buy as is from LFS rather than crushing them. Anyway will go only when free....and also an excuse to drop by Qian Hu!!
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